Armentrout Research Group

Peter B. Armentrout

Distinguished Professor (b. 1953)

University of Utah, Department of Chemistry,
315 S. 1400 E. Rm. 2020
Salt Lake City, UT 84112-0850
Phone : (801) 581 - 7885, Lab (801) 581 - 7901
Fax: (801) 581-8433
E-Mail : armentrout@chem.utah.edu

Field of Interest : Physical, Analytical, and Organometallic Chemistry

Education/Awards

• B.S. Case Western Reserve University, 1975
• Ph.D. California Institute of Technology, 1980
• Postdoctoral, Bell Labs, 1981
• Camille and Henry Dreyfus Grant for Newly Appointed Faculty in Chemistry, 1981
• Presidential Young Investigator National Science Foundation, 1984 - 1989
• Alfred P. Sloan Research Fellow, 1986 - 1990
• Camille and Henry Dreyfus Teacher Scholar, 1987 - 1992
• Fellow, AAAS 1992; APS 1994
• Buck-Whitney Award, ACS Eastern New York Section, 1993
• University of Utah Distinguished Research Award, 1994
• Mack Memorial Award Lecturer, The Ohio State University Department of Chemistry, 1997
• Japan Society for the Promotion of Science (JSPS) Fellow, 1999
• ISI Highly Cited Researcher in Chemistry (world's top 250 most highly cited researchers), 2000-present
• Biemann Medal, American Society of Mass Spectrometry, 2001
• Utah Award of Chemistry, American Chemical Society, 2002
• Phi Kappa Phi Honor Society, 2004
• Outstanding Alumnus of the Year, Department of Chemistry, Case Western Reserve University, 2004
• Freiser Memorial Lecture, Purdue University, 2007
• Field and Franklin Award for Outstanding Achievement in Mass Spectrometry, American Chemical Society, 2009
• Governor's Medal for Science and Technology Award, 2010
• Editorial Boards, Journal of the American Chemical Society, Organometallics, International Journal of Mass Spectrometry, Current Topics in Ion Chemistry and Physics, Journal of the American Society of Mass Spectrometry.

Table of Contents

Research Interests

Publication List

Short Biography

Research Interests

Dr. Armentrout's research is intended to provide a detailed understanding of the thermochemistry, kinetics, and dynamics of simple and complex chemical reactions. Of particular interest is elucidation of the intrinsic reactivity and thermochemistry of transition metals, metal-ligand complexes, metal-clusters, solvated ions, metallated macrocycles and metallated molecules of biological and environmental relevance. His group seeks to understand from a fundamental viewpoint reactions involved in catalysis, surface chemistry, organometallic chemistry, and plasma chemistry. Measurement of integral cross sections, product branching ratios, and the dependence of these quantities on the translational, internal, and electronic energies of the reactants provide a uniquely detailed look at the chemistry of interest. Spectroscopic experiments augment these studies by providing even more microscopic information. Techniques involved include mass spectrometry, ion beams, molecular beams, and laser spectroscopy. Specific areas of interest include :

Chemistry of state-selected atomic metal ions

Transition metals have an abundance of low-lying electronic states due to the near degeneracy of s and d orbitals. We have shown that different electronic states can have very different reactivity and that studies of these effects lend considerable insight into metal chemistry. Previous studies have involved mostly first row transition metal ions, however, we are developing a novel laser-based source that should permit such studies to be extended to second and third row transition metals where spin-orbit interactions become much more important.

Chemistry of unsaturated organometallic complexes

In order to understand condensed phase organometallic chemistry and homogeneous catalysis, systematic studies of the reactivity of ligated metals are underway. By varying the number and types of ligands in these complexes, we can study the periodic trends, the influence of ligand substitution, and the effects of metal oxidation state on the chosen reaction. Such studies hold promise of providing quantitative thermodynamic information and qualitative electronic data on reactive and transient unsaturated organometallic complexes, the key intermediates in homogeneous catalysis.

Thermochemistry of metal ions interacting with biological molecules

We are now in a position to study the interactions of metals ions with molecules of biological relevance. Early studies include some of the first quantitative measurements of the binding energies of Li+, Na+, and K+ with the DNA bases and amino acids.

Environmental Chemistry

In a collaborative study with theoreticians and experimentalists at the Pacific Northwest National Laboratories, we are conducting studies to examine the thermochemistry and dissociation dynamics of host-guest complexes of interest in environmental clean up. We seek to answer a key question with respect to engineering ion-selective ligands: namely, how to arrange donor atoms to interact favorably with a selected target ion and at the same time unfavorably with other ions. Previous work has concentrated on exploring the interactions of alkali metal ions with crown ethers and related molecules. Plans for continued work expand the range of metals and ligands under consideration.

Chemistry of metal cluster ions

By using laser vaporization, supersonic expansion techniques, we are able to generate cold transition metal cluster ions. Mass spectrometry then allows the size-specific reactivity of these clusters to be investigated easily. Our experiments enable us to measure the thermodynamic stabilities of these clusters and their reactivity with a variety of molecules. In essence, these studies constitute a gas-phase approach to providing quantitative data conerning surface chemistry and heterogeneous catalysis.

Chemistry of solvated ions

Gas phase solvated ions are important species in the atmosphere and in aerosols. Further, solvated ions can provide a bridge between phenomena in condensed phases and the gas phase. By performing detailed experiments on such species, we hope to obtain quantitative information that cannot be obtained easily in condensed phase media.

Laser spectroscopy

In collaboration with Prof. M. D. Morse, we are using resonantly enhanced multi-photon (REMP) laser spectroscopy coupled with pulsed field ionization (PFI/ZEKE) spectroscopy to study small transition metal cluster ions and ligated metal ions. Such work should provide detailed molecular information about the neutrals and ions.

Threshold behavior and non-adiabatic effects: theory and experiments

Much of the information gleaned from our work relies on accurately measuring the kinetic energy dependence of a reaction. Theoretical understanding of the variation in cross sections with energy is not well established. We are interested in developing theoretical models for such behavior by careful experimental characterization of the effects of translational, rotational, and vibrational energy on reactions, with a recent emphasis on collision-induced dissociation. The analysis includes detailed application of statistical phase space theories, reaction dynamics, and consideration of non-adiabatic effects.

Short Biography – Peter B. Armentrout

Professor Armentrout was born in Dayton, Ohio on March 13, 1953. He received a B.S. degree with highest honors in 1975 from Case Western Reserve University, Cleveland, Ohio. While at Case, Prof. Armentrout conducted research with Prof. Rob Dunbar on photodissociation spectroscopy of molecular ions which led to his interest in ion-molecule chemistry. After bicycling to California during the summer of 1975, he joined Prof. Jack Beauchamp at Caltech where he was awarded the Blanche A. Mowrer Memorial Fellowship. At Caltech, he constructed an ion beam apparatus designed to study the hyperthermal reactivity of atomic uranium and other metal ions; work which comprised his Ph.D. thesis, awarded in 1980. That January, Prof. Armentrout became a postdoctoral member of staff at Bell Labs in Murray Hill, New Jersey, working with Dr. Robert S. Freund. There he studied electron impact ionization of metastable atoms and molecules.

In July of 1981, Prof. Armentrout became an assistant professor at the University of California at Berkeley. He initiated a program which has come to study a wide spectrum of chemistries (primarily of transition metal species) by using ion-beam mass spectrometry. While at Berkeley, he was awarded a Camille and Henry Dreyfus Grant for Newly Appointed Faculty in Chemistry (1981), a NSF Presidential Young Investigator Award in its inception year (1984), and an Alfred P. Sloan Research Fellowship (1986). In 1987, he joined the faculty at the University of Utah as an associate professor where he was awarded a Camille and Henry Dreyfus Teacher-Scholar Grant (1987). In 1989, he was promoted to full professor. He has been recognized at Utah with an Outstanding Undergraduate Teaching Award from the Chemistry Department (1989) and the University-wide Distinguished Research Award (1994). He was the recipient of the Buck-Whitney Award from the American Chemical Society Eastern New York Section (1993) and in 1997, the graduate students at the Ohio State University Department of Chemistry selected Professor Armentrout as their Mack Memorial Award Lecturer. In 1998, he was promoted to Distinguished Professor of Chemistry and named Cannon Fellow in 2003. He received the Biemann Medal from the American Society of Mass Spectrometry in 2001 and the Utah Award of Chemistry from the Utah Sections of the American Chemical Society in 2003.

Professor Armentrout is a member of the editorial boards of the Journal of Physical Chemistry, the Journal of Chemical Physics, and the International Journal of Mass Spectrometry and Ion Processes, and formerly of the Journal of the American Chemical Society, Organometallics, and the Journal of Cluster Science (charter member). He is a member of the American Chemical Society, American Physical Society (fellow), American Society for Mass Spectrometry, and the American Association for the Advancement of Science (fellow). He presently has over 350 research publications that have appeared in the literature. Twenty-four students have received their Ph.D.s with Professor Armentrout.

In 1983, he married his high school sweetheart, Mary Ann White. They have three children, Matthew, Patricia, and Erin.

Publications – P.B. Armentrout

1. "Laser Photodissociation of Ions in a Bendix Time‑of‑Flight Mass Spectrometer" Dunbar, R. C.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Phys.1977, 24, 465‑468.

2. "Endothermic Reactions of Uranium Ions with N2, D2 and CD4" Armentrout, P. B.; Hodges, R. V.; Beauchamp, J. L. J. Chem. Phys.1977, 66, 4683‑4688.

3. "Metal Atoms as Super Bases: The Gas Phase Proton Affinity of Uranium" Armentrout, P. B.; Hodges, R. V.; Beauchamp, J. L. J. Am. Chem. Soc.1977, 99, 3162‑3163.

4. "Rare Gas Molecular Ions: Formation of XeF+ by Ion‑Molecule Reactions in Xe and NF3 and Evidence for Radiative Deactivation of Xe+(2P1/2)" Armentrout, P. B.; Berman, D. W.; Beauchamp, J. L. Chem. Phys. Lett. 1978, 53, 255‑259.

5. "Gas Phase Organometallic Chemistry. Reactions of Al+ with Alkyl Halides" Hodges, R. V.; Armentrout, P. B.; Beauchamp, J. L. Int. J. Mass Spectrom. Ion Phys.1979, 29, 375‑390.

6. "Properties and Reactions of Uranium (IV) Tetrahydroborate by Ion Cyclotron Mass Spectrometry" Armentrout, P. B.; Beauchamp, J. L. Inorg. Chem. 1979, 18, 1349‑1353.

7. "Ion Beam Studies of Organometallic Chemistry. High Energy "Sampling" of Reaction Intermediates Involved in Carbon‑Carbon Bond Cleavage by Transition Metals" Armentrout, P. B.; Beauchamp, J. L. J. Am. Chem. Soc.1980, 102, 1736‑1738.

8. "Experimental and Theoretical Studies of the Reaction Ba+ (D2, D) BaD+: Sequential Impulse Model for Endothermic Reactions" Armentrout, P. B.; Beauchamp, J. L. Chem. Phys.1980, 48, 315‑320.

9. "Collision Induced Dissociation of UO+ and UO2+" Armentrout, P. B.; Beauchamp, J. L. Chem. Phys.1980, 50, 21‑25.

10. "Reactions of U+ and UO+ with O2, CO, CO2, COS, CS2 and D2O" Armentrout, P. B.; Beauchamp, J. L. Chem. Phys.1980, 50, 27‑36.

11. "Endothermic Reactions of Ni+ with H2, HD and D2" Armentrout, P. B.; Beauchamp, J. L. Chem. Phys.1980, 50, 37‑43.

12. "Cobalt Carbene Ion: Reactions of Co+ with C2H4, cyclo‑C3H6 and cyclo‑C2H4O" Armentrout, P. B.; Beauchamp, J. L. J. Chem. Phys.1981, 74, 2819‑2826.

13. "Ion Beam Studies of the Reactions of Atomic Cobalt Ions with Alkanes: Determination of Metal‑Hydrogen and Metal‑Carbon Bond Energies and an Examination of the Mechanism by which Transition Metals Cleave Carbon‑Carbon Bonds" Armentrout, P. B.; Beauchamp, J. L. J. Am. Chem. Soc.1981, 103, 784‑791.

14. "Formation of Chromium Carbene Ions by Reaction of Electronically Excited Chromium Ions with Methane in the Gas Phase" Halle, L. F.; Armentrout, P. B.; Beauchamp, J. L. J. Am. Chem. Soc.1981, 103, 962‑963.

15. "Electron Impact Ionization Cross Section of Metastable N2(A3Su+)" Armentrout, P. B.; Tarr, S. M.; Dori, A.; Freund, R. S. J. Chem. Phys.1981, 75, 2786‑2794.

16. "Ion Beam Studies of the Reactions of Atomic Cobalt Ions with Alkenes" Armentrout, P. B.; Halle, L. F.; Beauchamp, J. L. J. Am. Chem. Soc.1981, 103, 6624‑6628.

17. "Ion Beam Studies of the Reactions of Atomic Cobalt Ions with Cycloalkanes in the Gas Phase: Formation and Decomposition of Chemically Activated Metallacycles" Armentrout, P. B.; Beauchamp, J. L. J. Am. Chem. Soc.1981, 103, 6628‑6632.

18. "Periodic Trends in Transition Metal‑Hydrogen, Metal‑Carbon, and Metal‑Oxygen Bond Dissociation Energies. Correlation with Reactivity and Electronic Structure" Armentrout, P. B.; Halle, L. F.; Beauchamp, J. L. J. Am. Chem. Soc.1981, 103, 6501‑6502.

19. "Thermochemistry of Uranium Halide Ions: Reactions of U+ with CH3F, SiF4, CH3Cl and CCl4" Armentrout, P. B.; Beauchamp, J. L. J. Phys. Chem.1981, 85, 4103‑4105.

20. "Reactions of Cr+, Mn+, Fe+, Co+ and Ni+ with O2 and N2O. Examination of the Translational Energy Dependence of the Cross Sections of Endothermic Reactions" Armentrout, P. B.; Halle, L. F.; Beauchamp, J. L. J. Chem. Phys.1982, 76, 2449‑2457.

21. "Ion Beam Studies of the Reactions of Group 8 Metal Ions with Alkanes: Correlation of Thermochemical Properties and Reactivity" Halle, L. F.; Armentrout, P. B.; Beauchamp, J. L. Organometallics1982, 1, 963‑968.

22. "Metal Cluster Ions: The Bond Energy of Mn2+" Ervin, K.; Loh, S. K.; Aristov, N.; Armentrout, P. B. J. Phys. Chem. 1983, 87, 3593‑3596.

23. "Fluorine Substituent Effects on Metal‑Carbene Bond Dissociation Energies. Implications for Metathesis Reactions of Fluorinated Olefins" Halle, L. F.; Armentrout, P. B.; Beauchamp, J. L. Organometallics1983, 2, 1829‑1833.

24. "Carbon and Oxygen Isotope Fractionation in Dense Interstellar Clouds" Langer, W. D.; Graedel, T. E.; Frerking, M. A.; Armentrout, P. B. Astrophys. J.1984, 277, 581‑604.

25. "Transition Metal Cluster Chemistry: Reactions of Mn2+ with O2" Armentrout, P. B.; Loh, S. K.; Ervin, K. M. J. Am. Chem. Soc.1984, 106, 1161‑1163.

26. "Threshold Behavior of Endothermic Reactions: C+(2P) + H2 6 CH+ + H" Ervin, K. M.; Armentrout, P. B. J. Chem. Phys.1984, 80, 2978‑2980.

27. "Bond Energy ‑ Bond Order Relations in Transition Metal Bonds: Vanadium" Aristov, N.; Armentrout, P. B. J. Am. Chem. Soc.1984, 106, 4065‑4066.

28. "Threshold Behavior for Chemical Reactions: Line‑of‑Centers Cross Section for Si+(2P) + H2 � SiH+ + H" Elkind, J. L.; Armentrout, P. B. J. Phys. Chem.1984, 88, 5454‑5456.

29. "Reactions of Atomic Cobalt Ions with Aldehydes and Ketones. Observation of Decarbonylation Processes Leading to Formation of Metal Alkyls and Metallacycles in the Gas Phase" Halle, L. F.; Crowe, W. E.; Armentrout, P. B.; Beauchamp, J. L. Organometallics1984, 3, 1694‑1706.

30. "Translational Energy Dependence of Ar+ + XY � ArX+ + Y (XY = H2, D2, HD) from Thermal to 30 eV c.m." Ervin, K. M.; Armentrout, P. B. J. Chem. Phys.1985, 83, 166‑189.

31. "Effect of Kinetic and Electronic Energy on the Reaction of V+ with H2, HD and D2" Elkind, J. L.; Armentrout, P. B. J. Phys. Chem.1985, 89, 5626‑5636.

32. "Kinetic Energy Dependence of Al+ + O2 � AlO+ + O" Weber, M. E.; Elkind, J. L.; Armentrout, P. B. J. Chem. Phys.1986, 84, 1521‑1529.

33. "Reaction Mechanisms and Thermochemistry of V+ + C2H2p (p = 1,2,3)" Aristov, N.; Armentrout, P. B. J. Am. Chem. Soc.1986, 108, 1806‑1819.

34. "Effect of Kinetic and Electronic Energy on the Reactions of Mn+ with H2, HD and D2" Elkind, J. L.; Armentrout, P. B. J. Chem. Phys.1986, 84, 4862‑4871.

35. "Neutral and Ionic Metal Methyl Bond Energies: Zn" Georgiadis, R.; Armentrout, P. B. J. Am. Chem. Soc.1986, 108, 2119‑2126.

36. "Transition Metal Hydride Bond Energies: First and Second Row" Elkind, J. L.; Armentrout, P. B. Inorg. Chem.1986, 25, 1078‑1080.

37. "Does Ground State Fe+ React with H2?" Elkind, J. L.; Armentrout, P. B. J. Am. Chem. Soc.1986, 108, 2765‑2767.

38. "C+(2P) + H2(D2,HD) � CH+(CD+) + H(D): I. Reaction Cross Sections and Kinetic Isotope Effects from Threshold to 15 eV c.m." Ervin, K. M.; Armentrout, P. B. J. Chem. Phys.1986, 84, 6738‑6749.

39. "C+(2P) + H2(D2,HD) � CH+(CD+) + H(D): II. Statistical Phase Space Theory" Ervin, K. M.; Armentrout, P. B. J. Chem. Phys.1986, 84, 6750‑6760.

40. "Transition Metal Cluster Ion Chemistry" Armentrout, P. B. In Laser Applications in Chemistry and Biophysics, El‑Sayed, M., Ed.; Proc. SPIE 1986, 620, 38‑45.

41. "A Continuous Source for Production of Cold, Mass‑Selected Transition Metal Cluster Ions" Loh, S. K.; Hales, D. A.; Armentrout, P. B. Chem. Phys. Lett.1986, 129, 527‑532.

42. "Collision Induced Dissociation of Vanadium Monoxide Ion" Aristov, N.; Armentrout, P. B. J. Phys. Chem.1986, 90, 5135‑5140.

43. "Effect of Kinetic and Electronic Energy on the Reactions of Fe+ with H2, HD and D2: State‑Specific Cross Sections for Fe+(6D) and Fe+(4F)" Elkind, J. L.; Armentrout, P. B. J. Phys. Chem.1986, 90, 5736‑5745.

44. "Effect of Kinetic and Electronic Energy on the Reactions of Co+, Ni+ and Cu+ with H2, HD and D2" Elkind, J. L.; Armentrout, P. B. J. Phys. Chem.1986, 90, 6576‑6586.

45. "Spin‑orbit State‑selected Reactions of Kr+(2P3/2 and 2P1/2) with H2, D2, and HD from Thermal Energies to 20 eV c.m." Ervin, K. M.; Armentrout, P. B. J. Chem. Phys.1986, 85, 6380‑6395.

46. "Reaction of Scandium Ions with Ethane. First and Second Hydride‑Scandium Ion Bond Energies" Sunderlin, L.; Aristov, N.; Armentrout, P. B. J. Am. Chem. Soc.1987, 109, 78‑89.

47. "Kinetic Energy Dependence of Ion‑Molecule Reactions: From Triatomics to Transition Metals" Armentrout, P. B. In Structure/Reactivity and Thermochemistry of Ions, Ausloos, P.; Lias, S. G., Eds.; D. Reidel: Dordrecht, 1987; pp. 97‑164.

48. "Effect of Kinetic and Electronic Energy on the Reactions of Cr+ with H2, HD and D2" Elkind, J. L.; Armentrout, P. B. J. Chem. Phys.1987, 86, 1868‑1877.

49. "Translational Energy Dependence of O+(4S) + N2 � NO+ + N from Thermal to 30 eV c.m." Burley, J. D.; Ervin, K. M.; Armentrout, P. B. J. Chem. Phys.1987, 86, 1944‑1953.

50. "Energy Dependence, Kinetic Isotope Effects, and Thermochemistry of the Nearly Thermoneutral Reactions N+(3P) + H2(HD, D2) � NH+(ND+) + H(D)" Ervin, K. M.; Armentrout, P. B. J. Chem. Phys.1987, 86, 2659‑2673.

51. "State‑specific Reactions of Atomic Transition Metal Ions with H2, HD and D2: Effects of d Orbitals on Chemistry" Elkind, J. L.; Armentrout, P. B. J. Phys. Chem.1987, 91, 2037‑2045.

52. "Hydrogen Atom Transfer Reactions of He+ and Ne+ with H2, D2, and HD" Ervin, K. M.; Armentrout, P. B. J. Chem. Phys.1987, 86, 6240‑6250.

53. "Reaction of Silicon Ion (2P) with Silane (SiH4, SiD4). Heats of Formation of SiHn, SiHn+ (n = 1, 2, 3) and Si2Hn+ (n = 0, 1, 2, 3). Remarkable Isotope Exchange Reaction Involving Four Hydrogen Shifts." Boo, B. H.; Armentrout, P. B. J. Am. Chem. Soc.1987, 109, 3549‑3559.

54. "Multiphoton Ionization of VOCl3" Georgiadis, R.; Armentrout, P. B. Chem. Phys. Lett.1987, 137, 144‑148.

55. "Non‑Adiabatic Behavior of a Transition Metal System: Exothermic Reactions of Fe+(6D, 4F) and Propane" Schultz, R. H.; Armentrout, P. B. J. Phys. Chem.1987, 91, 4433‑4435.

56. "Energetics and Reaction Mechanisms of Reactions of SiH+ + D2, SiD+ + H2, and Collision Induced Dissociation of SiD3+" Boo, B. H.; Armentrout, P. B. J. Phys. Chem.1987, 91, 5777‑5781.

57. "Methane Activation by V+: Electronic and Translational Energy Dependence" Aristov, N.; Armentrout, P. B. J. Phys. Chem.1987, 91, 6178‑6188.

58. "Translational Energy Dependence of O+(4S) + H2(D2, HD) � OH+(OD+) + H(D) from Thermal to 30 eV c.m." Burley, J. D.; Ervin, K. M.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes1987, 80, 153‑175.

59. "Electronic Effects in C‑H and C‑C Bond Activation: State‑specific Reactions of Fe+(6D, 4F) with Methane, Ethane and Propane" Schultz, R. H.; Elkind, J. L.; Armentrout, P. B. J. Am. Chem. Soc.1988, 110, 411‑423.

60. "Methane Activation by Ti+: Electronic and Translational Energy Dependence" Sunderlin, L. S.; Armentrout, P. B. J. Phys. Chem.1988, 92, 1209‑1219.

61. "Effect of Kinetic and Electronic Energy on the Reactions of Ti+ with H2, HD and D2" Elkind, J. L.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes1988, 83, 259‑284.

62. "Energetics and Dynamics in the Reaction of Si+ with SiF4. Thermochemistry of SiFx and SiFx+ (x = 1, 2, 3)" Weber, M. E.; Armentrout, P. B. J. Chem. Phys.1988, 88, 6898‑6910.

63. "Kinetic Energy Dependence of C+(2P) + O2 from Thermal Energies to 35 eV c.m." Burley, J. D.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes1988, 84, 157‑184.

64. "Collision‑Induced Dissociation Processes of Nb4+ and Fe4+: Fission vs. Evaporation" Loh, S. K.; Lian, L.; Hales, D. A.; Armentrout, P. B. J. Chem. Phys.1988, 89, 610‑611, 3378‑3379.

65. "Collision‑Induced Dissociation of Fe2+" Loh, S. K.; Lian, L.; Hales, D. A.; Armentrout, P. B. J. Phys. Chem.1988, 92, 4009‑4012.

66. "Periodic Trends in Gas Phase M‑H and M‑C Bond Energies" Armentrout, P. B.; Georgiadis, R. Polyhedron1988, 7, 1573‑1581.

67. "Energy Dependences of Ion‑Molecule Reactions" Armentrout, P. B. Comments Atomic Molec. Phys.1988, 22, 133‑144.

68. "Kinetic Energy Dependence of the Reactions of Ca+ and Zn+ with H2, D2, and HD. Effect of Empty versus Full d Orbitals" Georgiadis, R.; Armentrout, P. B. J. Phys. Chem.1988, 92, 7060‑7067.

69. "Translational and Electronic Energy Dependence of Chromium Ion Reactions with Methane" Georgiadis, R.; Armentrout, P. B. J. Phys. Chem.1988, 92, 7067‑7074.

70. "Spin‑Orbit State‑selected Reactions of Xe+(2P3/2 and 2P1/2) with H2, D2, and HD" Ervin, K. M.; Armentrout; P. B. J. Chem. Phys.1989, 90, 118‑126.

71. "Reactions of Ar+, Ne+, and He+ with SiF4 from Thermal Energy to 50 eV c.m." Weber, M. E.; Armentrout, P. B. J. Chem. Phys.1989, 90, 2213‑2224.

72. "Energetics and Mechanisms in the Reaction of Si+ with SiCl4. Thermochemistry of SiCl, SiCl+, and SiCl2+" Weber, M. E.; Armentrout, P. B. J. Phys. Chem.1989, 93, 1596‑1604.

73. "Reactions of Atomic Metal Ions with H2, CH4, and C2H6: Electronic Requirements for H‑H, C‑H, and C‑C Bond Activation" Armentrout, P. B. In Gas Phase Inorganic Chemistry, Russell, D. H., Ed.; Plenum: New York, 1989; pp. 1‑42.

74. "Periodic Trends in Chemical Reactivity: Reactions of Sc+, Y+, La+, and Lu+ with H2, D2, and HD" Elkind, J. L.; Sunderlin, L. S.; Armentrout, P. B. J. Phys. Chem. 1989, 93, 3151‑3158.

75. "State‑Specific Reactions of Fe+(6D, 4F) with O2 and cyclo‑C2H4O: Do0(Fe+‑O) and Effects of Collisional Relaxation" Loh, S. K.; Fisher, E. R.; Lian, L.; Schultz, R. H.; Armentrout, P. B. J. Phys. Chem.1989, 93, 3159‑3167.

76. "Collision‑Induced Dissociation of Niobium Cluster Ions: Transition Metal Cluster Binding Energies" Loh, S. K.; Lian, L.; Armentrout, P. B. J. Am. Chem. Soc.1989, 111, 3167‑3176.

77. "Collision‑Induced Dissociation of Fen+ (n = 2 ‑ 10) with Xe: Ionic and Neutral Iron Cluster Binding Energies" Loh, S. K.; Hales, D. A.; Lian, L.; Armentrout, P. B. J. Chem. Phys.1989, 90, 5466‑5485.

78. "Periodic Trends in Chemical Reactivity: Reactions of Sc+, Y+, La+, and Lu+ with Methane and Ethane" Sunderlin, L. S.; Armentrout, P. B. J. Am. Chem. Soc.1989, 111, 3845‑3855.

79. "Reactions of Ground State Cr+ with C2H6, C2H4, cyclo‑C3H6, and cyclo‑C2H4O: Bond Energies for CrCHn+ (n = 1‑3)" Georgiadis, R.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes1989, 89, 227‑247.

80. "Neutral and Ionic Metal‑Hydrogen and Metal‑Carbon Bond Energies: Reactions of Co+, Ni+, and Cu+ with Ethane, Propane, Methylpropane, and Dimethylpropane" Georgiadis, R.; Fisher, E. R.; Armentrout, P. B. J. Am. Chem. Soc.1989, 111, 4251‑4262.

81. "Translational and Electronic Energy Dependence of the Reaction of Mn+ with Ethane" Georgiadis, R.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes1989, 91, 123‑133.

82. "The Chemistry of Atomic Transition Metal Ions: Insight into Fundamental Aspects of Organometallic Chemistry" Armentrout, P. B.; Beauchamp, J. L. Acc. Chem. Res.1989, 22, 315‑321.

83. "Investigation of Isomeric Intermediates: Co+‑NH3 and H‑Co+‑NH2" Clemmer, D. E.; Armentrout, P. B. J. Am. Chem. Soc.1989, 111, 8280‑8281.

84. "Guided Ion Beam Studies of the Reactions of Co+ and Ni+ with CH3X (X = Cl, Br, I). Implications for the Metal‑Methyl Ion Bond Energies" Fisher, E. R.; Sunderlin, L. S.; Armentrout, P. B. J. Phys. Chem.1989, 93, 7375‑7382.

85. "Guided Ion Beam Studies of the Reactions of Fe+(6D, 4F) with CH3X (X = Cl, Br, I)" Fisher, E. R.; Schultz, R. H.; Armentrout, P. B. J. Phys. Chem.1989, 93, 7382‑7387.

86. "Oxidation Reactions at Variably‑Sized Transition Metal Centers: Fen+ and Nbn+ + O2 (n = 1 ‑ 3)" Loh, S. K.; Lian, L.; Armentrout, P. B. J. Chem. Phys.1989, 91, 6148‑6163.

87. "Thermochemistry of Ti+‑Hydrocarbon Bonds: Translational Energy Dependence of the Reactions of Ti+ with Ethane, Propane, and Trans‑2‑Butene" Sunderlin, L. S.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes1989, 94, 149‑177.

88. "Intrinsic Transition Metal‑Carbon Double Bond Dissociation Energies: Periodic Trends in M+‑CH2 Bond Strengths" Armentrout, P. B.; Sunderlin, L. S.; Fisher, E. R. Inorg. Chem.1989, 28, 4436‑4437.

89. "Ion Beam Studies of the Reaction of Silicon Ion (2P) with Water (H2O, D2O)" Boo, B. H.; Armentrout, P. B. Chungnam J. Sci.1989, 16, 121‑133.

90. "Ammonia Activation by V+: Electronic and Translational Energy Dependence" Clemmer, D. E.; Sunderlin, L. S.; Armentrout, P. B. J. Phys. Chem.1990, 94, 208‑217.

91. "Dissociative Charge Transfer Reactions of Ar+, Ne+ and He+ with CF4 from Thermal to 50 eV" Fisher, E. R.; Weber, M. E.; Armentrout, P. B. J. Chem. Phys.1990, 92, 2296‑2302.

92. "Reactions of Co+, Ni+, and Cu+ with Cyclopropane and Ethylene Oxide: Metal‑Methylidene Ion Bond Energies" Fisher, E. R.; Armentrout, P. B. J. Phys. Chem.1990, 94, 1674‑1683; 1994, 98, 8260.

93. "Ion Beam Studies of the Reaction of Si+(2P) with Methane. Reaction Mechanisms and Thermochemistry of SiCHx+ (x=1‑3)." Boo, B. H.; Elkind, J. L.; Armentrout, P. B. J. Am. Chem. Soc.1990, 112 2083‑2088.

94. "Temperature Dependence of the Reaction of O+ With HD" Sunderlin, L. S.; Armentrout, P. B. Chem. Phys. Lett.1990, 167, 188‑192.

95. "Ammonia Activation by Sc+ and Ti+: Electronic and Translational Energy Dependence" Clemmer, D. E.; Sunderlin, L. S.; Armentrout, P. B. J. Phys. Chem.1990, 94, 3008‑3015.

96. "Thermochemistry of C‑H and C‑C Bond Activation: Translational Energy Dependence of Reactions of Sc+ with Propane and 2‑Butenes" Sunderlin, L. S.; Armentrout, P. B. Organometallics1990, 9, 1248‑1253.

97. "Reactions of Mn+ with i‑C4H10, neo‑C5H12, (CH3)2CO, cyclo‑C3H6, and cyclo‑C2H4O: Bond Energies for Mn+‑CH2, Mn‑H, and Mn‑CH3" Sunderlin, L. S.; Armentrout, P. B. J. Phys. Chem.1990, 94, 3589‑3597.

98. "Multiphoton Ionization of Cobalt Atoms Produced by Multiphoton Dissociation of Co(CO)3NO and Co(CO)2(NO)PR3 (R = CH3, n‑C3H7, n‑C4H9)" Prinslow, D. A.; Niles, S.; Wight, C. A.; Armentrout, P. B. Chem. Phys. Lett.1990, 168, 482‑488.

99. "Heat of Formation of HO2. A Direct Determination from Guided‑Ion Beam Studies of O2+(2Pg, v = 0) + CH4." Fisher, E. R.; Armentrout, P. B. J. Phys. Chem.1990, 94, 4396‑4398.

100. "Periodic Trends in Transition Metal Hydrogen, Carbon, and Nitrogen Bonds" Armentrout, P. B. ACS Symp. Ser.1990, 428, 18‑33.

101. "C‑H Bond Activation as the Initial Step in the Co+‑Mediated Demethanation of Propane: The Critical Role of Angular Momentum at the Rate‑Limiting Transition State" van Koppen, P. A. M.; Brodbelt‑Lustig, J.; Bowers, M. T.; Dearden, D. V.; Beauchamp, J. L.; Fisher, E. R.; Armentrout, P. B. J. Am. Chem. Soc.1990, 112, 5663‑5665.

102. "Periodic Trends in the Reactions of Atomic Ions with Molecular Hydrogen" Armentrout, P. B. Int. Rev. Phys. Chem.1990, 9, 115‑148.

103. "Reactions of Fourth‑Period Metal Ions (Ca+ ‑ Zn+) with O2: Metal‑Oxide Ion Bond Energies" Fisher, E. R.; Elkind, J. L.; Clemmer, D. E.; Georgiadis, R.; Loh, S. K.; Aristov, N.; Sunderlin, L. S.; Armentrout, P. B. J. Chem. Phys.1990, 93, 2676‑2691.

104. "C‑H Bond Activation by Gas‑Phase Atomic Metal Ions" Armentrout, P. B. In Selective Hydrocarbon Activation: Principles and Progress, Davies, J. A.; Watson, P. L.; Liebman, J. F.; Greenberg, A., Eds.; VCH: New York, 1990; pp. 467‑533.

105. "Effect of Internal Excitation on the Collision‑Induced Dissociation and Reactivity of Co2+" Hales, D. A.; Armentrout, P. B. J. Cluster Science1990, 1, 127‑142.

106. "Kinetic Energy Dependence of Dissociative Charge Transfer Reactions of He+, Ne+, Ar+, Kr+, and Xe+ with Silane" Fisher, E. R.; Armentrout, P. B. J. Chem. Phys.1990, 93, 4858‑4867.

107. "Electronic State‑Specific Transition Metal Ion Chemistry" Armentrout, P. B. Annu. Rev. Phys. Chem.1990, 41, 313‑344.

108. "Laser Multiphoton Ionization and Photoelectron Spectroscopy of Co(CO)3NO and Fe(CO)5" Niles, S.; Prinslow, D. A.; Wight, C. A.; Armentrout, P. B. J. Chem. Phys.1990, 93, 6186‑6199.

109. "Translational and Electronic Energy Dependence of S+ + H2(D2,HD) � SH+(SD+) + H(D). Spin‑Allowed and Spin‑Forbidden Pathways" Stowe, G. F.; Schultz, R. H.; Wight, C. A.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes1990, 100, 177‑195.

110. "The Appearance Energy of CF3+ from CF4: Ion‑Molecule Reactions Related to the Thermochemistry of CF3+" Fisher, E. R.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes1990, 101, R1‑R6.

111. "Collision‑Induced Dissociation of Nbn+ (n = 2‑11): Bond Energies and Dissociation Pathways" Hales, D. A.; Lian, L.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes1990, 102, 269‑301.

112. "Chemistry of Excited Electronic States" Armentrout, P. B. Science1991, 251, 175‑179.

113. "Threshold Collisional Activation of Fe+�C3H8: Probing the Potential Energy Surface" Schultz, R. H.; Armentrout, P. B. J. Am. Chem. Soc.1991, 113, 729‑730.

114. "Guided Ion Beam Studies of the Ground State O2+(2Pg, v = 0) Reaction with CH4: Effect of Internal vs Translational Energy" Fisher, E. R.; Armentrout, P. B. J. Chem. Phys.1991, 94, 1150‑1157.

115. "Kinetic Energy Dependence of the Reactions of C+(2P) + N2 from Threshold to 28 eV CM" Burley, J. D.; Sunderlin, L. S.; Armentrout, P. B. J. Chem. Phys.1991, 94, 1939‑1946.

116. "The Gas‑Phase Thermochemistry of FeH" Schultz, R. H.; Armentrout, P. B. J. Chem. Phys.1991, 94, 2262‑2268.

117. "Collision‑Induced Dissociation of CS2+. Heat of Formation of the CS Radical" Prinslow, D. A.; Armentrout, P. B. J. Chem. Phys.1991, 94, 3563‑3567.

118. "Transition Metal Ion Mediated C‑H and C‑C Bond Activation of Alkanes: Dynamic Coupling Between Entrance and Exit Channel Transition States" van Koppen, P. A. M.; Brodbelt‑Lustig, J.; Bowers, M. T.; Dearden, D. V.; Beauchamp, J. L.; Fisher, E. R.; Armentrout, P. B. J. Am. Chem. Soc.1991, 113, 2359‑2369.

119. "Ammonia Activation by Co+, Ni+, and Cu+. M+‑NH2 Bond Energies and M+�NH3 Adduct Lifetimes" Clemmer, D. E.; Armentrout, P. B. J. Phys. Chem.1991, 95, 3084‑3090.

120. "The Charge Transfer Reaction N2+(X, v = 0) + Ar � Ar+ + N2 from Thermal to 20 eV c.m." Schultz, R. H.; Armentrout, P. B. Chem. Phys. Lett.1991, 179, 429‑434.

121. "Translational and Internal Energy Effects in Reactions of O+ and O2+ with SiF4" Fisher, E. R.; Armentrout, P. B. Chem. Phys. Lett.1991, 179, 435‑441.

122. "The Bond Energy of Ni2+" Lian, L.; Su, C.‑X.; Armentrout, P. B. Chem. Phys. Lett.1991, 180, 168‑172.

123. "Reactions of O2+, Ar+, Ne+, and He+ with SiCl4: Thermochemistry of SiClx+ (x = 1‑3)" Fisher, E. R.; Armentrout, P. B. J. Phys. Chem.1991, 95, 4765‑4772.

124. "Reactions of N4+ with Rare Gases from Thermal to 10 eV c.m.: Collision‑Induced Dissociation, Charge Transfer, and Ligand Exchange" Schultz, R. H.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes1991, 107, 29‑48.

125. "Reactions of N2+ and N4+ with O2 from Thermal to 20 eV c.m." Schultz, R. H.; Armentrout, P. B. J. Chem. Phys.1991, 95, 121‑129.

126. "The Gas‑Phase Thermochemistry of TiH" Chen, Y.‑M.; Clemmer, D. E.; Armentrout, P. B. J. Chem. Phys.1991, 95, 1228‑1233.

127. "Kinetic Energy Dependence of the Reactions of O+ and O2+ with CF4 and C2F6" Fisher, E. R.; Armentrout, P. B. J. Phys. Chem.1991, 95, 6118‑6124.

128. "C‑H and C‑C Bond Activations by Silicon. Thermochemistry and Mechanism of the Reaction of Si+(2P) with Ethane" Boo, B. H.; Armentrout, P. B. J. Am. Chem. Soc.1991, 113, 6401‑6408.

129. "Reaction of Sc+, Ti+, and V+ with CO. MC+ and MO+ Bond Energies" Clemmer, D. E.; Elkind, J. L.; Aristov, N.; Armentrout, P. B. J. Chem. Phys.1991, 95, 3387‑3393.

130. "The Sequential Bond Energies of Fe(CO)x+ (x = 1 ‑ 5): Systematic Effects on Collision‑Induced Dissociation Measurements" Schultz, R. H.; Crellin, K. C.; Armentrout, P. B. J. Am. Chem. Soc.1991, 113, 8590‑8601.

131. "Reaction of Zn+ with NO2. The Gas‑Phase Thermochemistry of ZnO" Clemmer, D. E.; Dalleska, N. F.; Armentrout, P. B. J. Chem. Phys.1991, 95, 7263‑7268.

132. "Gas Phase Organometallic Chemistry of Transition Metal Hydrides" Armentrout, P. B.; Sunderlin, L. S. In Transition Metal Hydrides; Dedieu, A., Ed.; VCH: New York, 1992; pp. 1‑64.

133. "Hydrogen Atom Transfer Reactions of N2+ with H2, HD, and D2 From Thermal to 10 eV c.m." Schultz, R. H.; Armentrout, P. B. J. Chem. Phys.1992, 96, 1036‑1045.

134. "A Guided‑Ion Beam Study of the Reactions of N4+ with H2, HD, and D2: An Evaluation of Pseudo‑Arrhenius Analyses of Ion‑molecule Reaction Systems" Schultz, R. H.; Armentrout, P. B. J. Chem. Phys.1992, 96, 1046‑1052.

135. "Threshold Collisional Activation of FeC2H6+: Fe+�ethane vs. Fe+�dimethyl Structures" Schultz, R. H.; Armentrout, P. B. J. Phys. Chem.1992, 96, 1662‑1667.

136. "Thermochemistry and Structures of FeC3H6+: Metallacycle and Metal‑Alkene Isomers" Schultz, R. H.; Armentrout, P. B. Organometallics1992, 11, 828‑836.

137. "Gas‑Phase Thermochemistry of the Group 3 Dioxides: ScO2, YO2 and LaO2" Clemmer, D. E.; Dalleska, N. F.; Armentrout, P. B. Chem. Phys. Lett.1992, 190, 259‑265.

138. "Activation of Alkanes by Cr+: Unique Reactivity of Ground State Cr+(6S) and Thermochemistry of Neutral and Ionic Chromium‑Carbon Bonds" Fisher, E. R.; Armentrout, P. B. J. Am. Chem. Soc.1992, 114, 2039‑2049.

139. "Electronic Effects in C‑H and C‑C Bond Activation: Reactions of Excited State Cr+ with Propane, Butane, Methylpropane, and Dimethylpropane" Fisher, E. R.; Armentrout, P. B. J. Am. Chem. Soc.1992, 114, 2049‑2055.

140. "Guided Ion Beam Studies of the Reaction of Si+(2P) with Methylsilane. Reaction Mechanisms and Thermochemistry of Organosilicon Species" Kickel, B. L.; Fisher, E. R.; Armentrout, P. B. J. Phys. Chem.1992, 96, 2603‑2609.

141. "Guided Ion Beam Studies of the Energetics of Organometallic Species" Armentrout, P. B.; Clemmer, D. E., In Energetics of Organometallic Species, Simoes, J. A. M., Ed.; Kluwer: Netherlands, 1992; pp. 321‑356.

142. "Collision‑induced Dissociation of Nin+ (n = 2 ‑ 18) with Xe: Bond Energies, Geometrical Structures, and Dissociation Pathways" Lian, L.; Su, C.‑X.; Armentrout, P. B. J. Chem. Phys.1992, 96, 7542‑7554.

143. "Direct Determination of the Adiabatic Ionization Energy of NO2 as Measured by Guided Ion Beam Mass Spectrometry" Clemmer, D. E.; Armentrout, P. B. J. Chem. Phys.1992, 97, 2451‑2458.

144. "Laser Multiphoton Dissociation ‑ Multiphoton Ionization and Photoelectron Spectroscopy of Fe(C5H5)2, Co(C5H5)2 and Ni(C5H5)2" Niles, S.; Prinslow, D. A.; Wight, C. A.; Armentrout, P. B. J. Chem. Phys.1992, 97, 3115‑3125.

145. "Isotope Effects in the Reactions of Atomic Ions with H2, D2, and HD" Armentrout, P. B. ACS Symp. Ser.1992, 502, 194‑209.

146. "Multiphoton Dissociation and Multiphoton Ionization Spectroscopy of VOCl3" Niles, S.; Armentrout, P. B.; Wight, C. A. Chem. Phys.1992, 165, 143‑146.

147. "Collision‑Induced Dissociation of Fen+ (n = 2 ‑ 19) with Xe: Bond Energies, Geometric Structures, and Dissociation Pathways" Lian, L.; Su, C.‑X.; Armentrout, P. B. J. Chem. Phys.1992, 97, 4072‑4083.

148. "Collision‑Induced Dissociation of Tin+ (n = 2 ‑ 22) with Xe: Bond Energies, Geometric Structures, and Dissociation Pathways" Lian, L.; Su, C.‑X.; Armentrout, P. B. J. Chem. Phys.1992, 97, 4084‑4093.

149. "Collision‑Induced Dissociation and Charge Transfer Reactions of SFx+ (x = 1 ‑ 5): Thermochemistry of Sulfur Fluoride Ions and Neutrals" Fisher, E. R.; Kickel, B. L.; Armentrout, P. B. J. Chem. Phys.1992, 97, 4859‑4870.

150. "Reactions of Protonated Water Clusters with Deuterated Ammonia: H(H2O)n+ (n = 1‑4) + ND3" Honma, K.; Sunderlin, L. S.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes,1992, 117, 237‑259.

151. "Internal and Translational Energy Effects on the Charge Transfer Reaction of CO2+ with O2" Ferguson, E. E.; Van Doren, J. M.; Viggiano, A. A.; Morris, R. A.; Paulson, J. F.; Stewart, J. D.; Sunderlin, L. S.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes,1992, 117, 261‑282.

152. "Comparison of Main Group and Transition Metal Ion Chemistry" Armentrout, P. B. In Gas‑Phase Metal Reactions, Fontijn, A., Ed.; Elsevier: Netherlands, 1992; pp. 301‑317.

153. "Guided Ion Beam Studies of the Reactions of O+, O2+, N+, and N2+ with Silane" Kickel, B. L.; Griffin, J. B.; Armentrout, P. B. Z. Phys. D1992, 24, 101‑110.

154. "Understanding Heterolytic Bond Cleavage" Armentrout, P. B.; Simons, J. J. Am. Chem. Soc.1992, 114, 8627‑8633.

155. "Thermochemical Measurements by Guided Ion Beam Mass Spectrometry" Armentrout, P. B. In Advances in Gas Phase Ion Chemistry, Vol. 1; Adams, N. G.; Babcock, L. M., Eds.; JAI: Greenwich, 1992; pp. 83‑119.

156. "Reactions of Al+(1S) with NO2, N2O and CO2: Thermochemistry of AlO and AlO+" Clemmer, D. E.; Weber, M. E.; Armentrout, P. B. J. Phys. Chem.1992, 96, 10888‑10893.

157. "The Bond Energies of Cr2+ and Cr2" Su, C.‑X.; Hales, D. A.; Armentrout, P. B. Chem. Phys. Lett.1993, 201, 199‑204.

158. "Reactions of ScO+, TiO+, and VO+ with D2: M+‑OH Bond Energies and the Effects of Spin Conservation" Clemmer, D. E.; Aristov, N.; Armentrout, P. B. J. Phys. Chem.1993, 97, 544‑552.

159. "Gas‑Phase Metal Ion Ligation: Collision‑Induced Dissociation of Fe(H2O)x+ and Fe(CH4)x+ (x = 1 ‑ 4)" Schultz, R. H.; Armentrout, P. B. J. Phys. Chem.1993, 97, 596‑603.

160. "The Bond Energy of Co2+" Russon, L. M.; Heidecke, S. A.; Birke, M. K.; Conceicao, J.; Armentrout, P. B.; Morse, M. D. Chem. Phys. Lett.1993, 204, 235‑240.

161. "Gas‑Phase Thermochemistry of VH and CrH" Chen, Y.‑M.; Clemmer, D. E.; Armentrout, P. B. J. Chem. Phys.1993, 98, 4929‑4936.

162. "Reactions of Alkaline Earth Ions with H2, D2 and HD" Dalleska, N. F.; Crellin, K. C.; Armentrout, P. B. J. Phys. Chem.1993, 97, 3123‑3128.

163. "Reaction of O2+(X2Pg) with H2, D2, and HD: Guided Ion Beam Studies, MO Correlations, and Statistical Theory Calculations" Weber, M. E.; Dalleska, N. F.; Tjelta, B. L.; Fisher, E. R.; Armentrout, P. B. J. Chem. Phys.1993, 98, 7855-7867.

164. "Laser Photoionization Probes of Ligand Binding Effects in Multiphoton Dissociation of Gas Phase Transition Metal Complexes" Wight, C. A.; Armentrout, P. B. ACS Symp. Ser.1993, 530, 61-74.

165. "Guided‑Ion Beam Studies of the Reactions of Protonated Water Clusters, H(H2O)n+ (n = 1 ‑ 4), with Acetonitrile" Honma, K.; Sunderlin, L. S.; Armentrout, P. B. J. Chem. Phys.1993, 99, 1623-1632.

166. "The Sequential Bond Energies of Cr(CO)x+, x = 1 ‑ 6" Khan, F. A.; Clemmer, D. E.; Schultz, R. H.; Armentrout, P. B. J. Phys. Chem.1993, 97, 7978-7987.

167. "Collision‑Induced Dissociation of Ag(C6H6)+" Chen, Y.‑M.; Armentrout, P. B. Chem. Phys. Lett.1993, 210, 123-128.

168. "Dissociative Charge Transfer Reactions of N+(3P), N2+(2S+g), Ar+(2P3/2,1/2), and Kr+(2P3/2) with SiF4. Thermochemistry of SiF4+ and SiF3+" Kickel, B. L.; Fisher, E. R.; Armentrout, P. B. J. Phys. Chem.1993, 97, 10198-10203.

169. "Collision-Induced Dissociation and Charge Transfer Reactions of SiFx+ (x = 1 - 4). Thermochemistry of SiFx and SiFx+" Fisher, E. R.; Kickel, B. L.; Armentrout, P. B. J. Phys. Chem.1993, 97, 10204-10210.

170. "Collision‑Induced Dissociation of Crn+ (n = 2 ‑ 21) with Xe: Bond Energies, Dissociation Pathways, and Structures" Su, C.‑X.; Armentrout, P. B. J. Chem. Phys.1993, 99, 6506-6516.

171. "Collision-Induced Dissociation of Vn+ (n = 2 - 20) with Xe: Bond Energies, Dissociation Pathways, and Structures" Su, C.-X.; Hales, D. A.; Armentrout, P. B. J. Chem. Phys.1993, 99, 6613-6623.

172. "Stepwise Solvation Enthalpies of Protonated Water Clusters: Collision Induced Dissociation as an Alternative to Equilibrium Studies" Dalleska, N. F.; Honma, K.; Armentrout, P. B. J. Am. Chem. Soc.1993, 115, 12125-12131.

173. "Collision-induced Dissociation of Con+ (n = 2 - 18) with Xe: Bond Energies of Cationic and Neutral Cobalt Clusters, Dissociation Pathways, and Structures" Hales, D. A.; Su, C.-X.; Lian, L.; Armentrout, P. B. J. Chem. Phys.1994, 100, 1049-1057.

174. "Collision‑Induced Dissociation of Transition Metal Cluster Ions" Armentrout, P. B.; Hales, D. A.; Lian, L. In Advances in Metal and Semiconductor Clusters, Vol. 2; Duncan, M. A., Ed.; JAI: Greenwich, 1994; pp. 1-39.

175. "Photodissociation Measurements of Bond Dissociation Energies: Ti2+, V2+, Co2+, and Co3+" Russon, L. M.; Heidecke, S. A.; Birke, M. K.; Conceicao, J.; Morse, M. D.; Armentrout, P. B. J. Chem. Phys.1994, 100, 4747-4755.

176. "Rotational Temperature Dependence of the Reaction of N+ and C+ with H2, HD, and D2" Sunderlin, L. S.; Armentrout, P. B. J. Chem. Phys.1994, 100, 5639-5645.

177. "Sequential Bond Energies of Water to Na+(3s0), Mg+(3s1), and Al+(3s2)" Dalleska, N. F.; Tjelta, B. L.; Armentrout, P. B. J. Phys. Chem.1994, 98, 4191-4195.

178. "Solvation of Transition Metal Ions by Water. Sequential Binding Energies of M+(H2O)x (x = 1 - 4) for M = Ti - Cu Determined by Collision-Induced Dissociation" Dalleska, N. F.; Honma, K.; Sunderlin, L. S.; Armentrout, P. B. J. Am. Chem. Soc.1994, 116, 3519-3528.

179. "Relative Energetics of C-H and C-C Bond Activation of Alkanes: Reactions of Ni+ and Fe+ with Propane on the Lowest Energy (Adiabatic) Potential Energy Surfaces" van Koppen, P. A. M.; Bowers, M. T.; Fisher, E. R.; Armentrout, P. B. J. Am. Chem. Soc.1994, 116, 3780-3791.

180. "State-Specific Reactions of Fe+(a6D, a4F) with D2O and Reactions of FeO+ with D2" Clemmer, D. E.; Chen, Y.-M.; Khan, F. A.; Armentrout, P. B. J. Phys. Chem.1994, 98, 6522-6529.

181. "Kinetic and Electronic Energy Dependence of the Reaction of V+ with D2O" Clemmer, D. E.; Chen, Y.-M.; Aristov, N.; Armentrout, P. B. J. Phys. Chem.1994, 98, 7538-7544.

182. "Charge Transfer Reaction of 14,15N+(3PJ) + N2(1Sg+) From Thermal to 100 eV. Crossed-Beam And Scattering-Cell Guided-Ion Beam Experiments" Freysinger, W.; Khan, F. A.; Armentrout, P. B.; Tosi, P.; Dmitriev, O.; Bassi, D. J. Chem. Phys.1994, 101, 3688-3695.

183. "Conversion of CH4 to CH3OH: Reactions of CoO+ with CH4 and D2, Co+ with CH3OD and D2O, and Co+(CH3OD) with Xe" Chen, Y.-M.; Clemmer, D. E.; Armentrout, P. B. J. Am. Chem. Soc.1994, 116, 7815-7826.

184. "Guided Ion Beam Studies of Reactions of Alkaline Earth Ions with O2" Dalleska, N. F.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes1994, 134, 203-212.

185. "Thermochemistry and Structures of CoC3H6+: Metallacycle and Metal-Alkene Isomers" Haynes, C. L.; Armentrout, P. B. Organometallics1994, 13, 3480-3490.

186. "Kinetic and Electronic Energy Dependence of the Reactions of Sc+ and Ti+ with D2O" Chen, Y.-M.; Clemmer, D. E.; Armentrout, P. B. J. Phys. Chem.1994, 98, 11490-11498.

187. "Guided Ion Beam Studies of the Reactions of Ti+, V+, and Cr+ with Silane. Electronic State Effects, Comparison to Reactions with Methane, and M+ - SiHx (x = 0 - 3) Bond Energies" Kickel, B. L.; Armentrout, P. B. J. Am. Chem. Soc.1994, 116, 10742-10750.

188. "The Potential Energy Surface for Carbon-Dioxide Activation by V+: A Guided Ion Beam Study" Sievers, M. R.; Armentrout, P. B. J. Chem. Phys.1995, 102, 754-762.

189. "Reactions of Fe+, Co+ and Ni+ with Silane. Electronic State Effects and M+ ‑ SiHx (x = 0 - 3) Bond Energies" Kickel, B. L.; Armentrout, P. B. J. Am. Chem. Soc.1995, 117, 764-773.

190. "Guided Ion Beam Studies of the Reactions of Mn+, Cu+, and Zn+ with Silane. M+ ‑ SiHx (x = 0 - 3) Bond Energies" Kickel, B. L.; Armentrout, P. B. J. Phys. Chem.1995, 99, 2024-2032.

191. "Guided Ion Beam Studies of the Reactions of Group 3 Metal Ions (Sc+, Y+, La+, and Lu+) with Silane. Electronic State Effects, Comparison to Reactions with Methane, and M+ ‑ SiHx (x = 0 ‑ 3) Bond Energies" Kickel, B. L.; Armentrout, P. B. J. Am. Chem. Soc.1995, 117, 4057-4070.

192. "Sequential Bond Energies of Cu(CO)x+ and Ag(CO)x+ (x = 1 - 4)" Meyer, F.; Chen, Y.-M.; Armentrout, P. B. J. Am. Chem. Soc.1995, 117, 4071-4081.

193. "Experimental and Theoretical Studies of Co(CH4)x+ with x = 1 ‑ 4" Haynes, C. L.; Armentrout, P. B.; Perry, J. K.; Goddard, W. A., III J. Phys. Chem.1995, 99, 6340‑6346.

194. "Ligand Effects in Organometallic Thermochemistry: The Sequential Bond Energies of Ni(CO)x+, Ni(N2)x+ (x = 1 - 4) and Ni(NO)x+ (x = 1 - 3)" Khan, F. A.; Steele, D. L.; Armentrout, P. B. J. Phys. Chem.1995, 99, 7819-7828.

195. "Collision-Induced Dissociation Studies of V(CO)x+, x = 1 - 7: Sequential Bond Energies and the Heat of Formation of V(CO)6" Sievers, M. R.; Armentrout, P. B. J. Phys. Chem.1995, 99, 8135-8141.

196. "Ligand Effects in s-Bond Activation by Transition Metal-Ligand Complexes" Tjelta, B. L.; Armentrout, P. B. J. Am. Chem. Soc.1995, 117, 5531-5533.

197. "The Potential Energy Surface for Activation of Methane by Co+: An Experimental Study" Haynes, C. L.; Chen, Y.-M.; Armentrout, P. B. J. Phys. Chem.1995, 99, 9110-9117.

198. "Reactions of Ru+, Rh+, Pd+, and Ag+ with H2, HD and D2" Chen, Y.-M.; Elkind, J. L.; Armentrout, P. B. J. Phys. Chem.1995, 99, 10438-10445.

199. "Collision-Induced Dissociation Studies of Co(CO)x+, x = 1 - 5: Sequential Bond Energies and the Heat of Formation of Co(CO)4" Goebel, S.; Haynes, C. L.; Khan, F. A.; Armentrout, P. B. J. Am. Chem. Soc.1995, 117, 6994-7002.

200. "Kinetic Energy Dependence of the Reactions of Ru+, Rh+, Pd+, and Ag+ with O2" Chen, Y.-M.; Armentrout, P. B. J. Chem. Phys.1995, 103, 618-625.

201. "Activation of Methane by Gas-Phase Rh+" Chen, Y.-M.; Armentrout, P. B. J. Phys. Chem.1995, 99, 10775-10779.

202. "Guided Ion Beam Studies of the Reactions of Ag+ with C2H6, C3H8, HC(CH3)3 and c‑C3H6" Chen, Y.-M.; Armentrout, P. B. J. Phys. Chem.1995, 99, 11424-11431.

203. "Activation of C2H6, C3H8, and c-C3H6 by Gas-phase Rh+ and the Thermochemistry of Rh-ligand Complexes" Chen, Y.-M.; Armentrout, P. B. J. Am. Chem. Soc.1995, 117, 9291-9304.

204. "Thermochemistry of Transition Metal Benzene Complexes: Binding Energies of M(C6H6)x+ (x = 1, 2) for M = Ti to Cu" Meyer, F.; Khan, F. A.; Armentrout, P. B. J. Am. Chem. Soc.1995, 117, 9740-9748.

205. "Particle Interchange Reactions Involving Plasma Impurity Ions and H2, D2 and HD" Armentrout, P. B.; Botero, J. In Atomic and Molecular Processes in Fusion Edge Plasmas; Janev, R. K., Ed.; Plenum: New York, 1995, pp. 433-460.

206. "Building Organometallic Complexes from the Bare Metal: Thermochemistry and Electronic Structure Along the Way" Armentrout, P. B. Acc. Chem. Res.1995, 28, 430-436.

207. "Collision-Induced Dissociation of N3+(X3S-) with Ne, Ar, Kr, and Xe" Haynes, C. L.; Freysinger, W.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes1995, 149/150, 267-278.

208. "Reactions of Y+, Zr+, Nb+, and Mo+ with H2, HD, and D2" Sievers, M. R.; Chen, Y.‑M.; Elkind, J. L.; Armentrout, P. B. J. Phys. Chem.1996, 100, 54-62.

209. "The Reaction of FeCH2+ + D2: Probing the [FeCH4]+ Potential Energy Surface" Haynes, C. L.; Chen, Y.-M.; Armentrout, P. B. J. Phys. Chem.1996, 100, 111-119.

210. "Guided-Ion Beam Studies of Ionic Transition Metal Clusters and Complexes" Armentrout, P. B. In Metal-Ligand Interactions - Structure and Reactivity, Russo, N. and Salahub, D. R., Eds.; Kluwer: Dordrecht, 1996; pp 23-48.

211. "Cation-Ether Complexes in the Gas Phase: Bond Dissociation Energies and Equilibrium Structures of Li+[O(CH3)2]x, x = 1 - 4" More, M. B.; Glendening, E. D.; Ray, D.; Feller, D.; Armentrout, P. B. J. Phys. Chem.1996, 100, 1605-1614.

212. "Guided Ion-Beam Determination of the Co+-H2 Bond Dissociation Energy" Haynes, C. L.; Armentrout, P. B. Chem. Phys. Lett.1996, 249, 64-70.

213. "Guided Ion Beam Studies of the Reactions of Fen+ (n = 2 - 15) with D2. Cluster-Deuteride Bond Energies as a Chemical Probe of Cluster Structures" Concei��o, J.; Loh, S. K.; Lian, L.; Armentrout, P. B. J. Chem. Phys.1996, 104, 3976-3988.

214. "Probing The [CoC2H6]+ Potential Energy Surface: A Detailed Guided-Ion Beam Study" Haynes, C. L.; Fisher, E. R.; Armentrout, P. B. J. Am. Chem. Soc.1996, 118, 3269-3280.

215. "Gas-Phase Thermochemistry of Transition Metal Ligand Systems: Reassessment of Values and Periodic Trends" Armentrout, P. B.; Kickel, B. L. In Organometallic Ion Chemistry, Freiser, B. S., Ed.; Kluwer: Dordrecht, 1996; pp. 1-45.

216. "'Bare' Iron-Methoxide Cation: A Simple Model to Probe the Mechanism of b‑Hydrogen Transfer in Organometallic Compounds" Fiedler, A.; Schr�der, D.; Schwarz, H.; Tjelta, B. L.; Armentrout, P. B. J. Am. Chem. Soc.1996, 118, 5047-5055.

217. "Sequential Bond Energies of Ti(CO)x+, x = 1 - 7" Meyer, F.; Armentrout, P. B. Molec. Phys.1996, 88, 187-197.

218. "Gas-Phase Ion Dynamics and Chemistry" Armentrout, P. B.; Baer, T. J. Phys. Chem.1996, 100, 12866-12877.

219. "Cation-Ether Complexes in the Gas Phase: Bond Dissociation Energies and Equilibrium Structures of Li+[1,2-dimethoxyethane]x, x = 1-2, and Li+[12-crown-4]" Ray, D.; Feller, D.; More, M. B.; Glendening, E. D.; Armentrout, P. B. J. Phys. Chem.1996, 100, 16116-16125.

220. "Ligand Effects in C-H and C-C Bond Activation by Gas-Phase Transition Metal-Ligand Complexes" Tjelta, B. L.; Armentrout, P. B. J. Am. Chem. Soc.1996, 118, 9652‑9660.

221. "Reactions and Thermochemistry of Small Cluster Ions: Fe(CS2)n+ (n = 1,2)" Capron, L.; Feng, W. Y.; Lifshitz, C.; Tjelta, B. L.; Armentrout, P. B. J. Phys. Chem.1996, 100, 16571-16576.

222. "Metal Oxide and Carbide Thermochemistry of Y+, Zr+, Nb+, and Mo+" Sievers, M. R.; Chen, Y.-M.; Armentrout, P. B. J. Chem. Phys.1996, 105, 6322-6333.

223. "Probing the [CoC3H8]+ Potential Energy Surface: A Detailed Guided-Ion Beam Study" Haynes, C. L.; Fisher, E. R.; Armentrout, P. B. J. Phys. Chem.1996, 100, 18300-18316.

224. "Dissociation Thermochemistry of Tetramethylsilane Ion. Comparative Determination by Thermal Dissociation and Threshold Collisional Dissociation" Lin, C.-Y.; Dunbar, R. C.; Haynes, C. L.; Armentrout, P. B.; Tonner, D. S.; McMahon, T. B. J. Phys. Chem.1996, 100, 19659-19665.

225. "Cation‑Ether Complexes in the Gas Phase: Bond Dissociation Energies of Na+(dimethyl ether)x, x = 1 ‑ 4; Na+(1,2‑dimethoxyethane)x, x = 1 and 2; and Na+(12-crown-4)" More, M. B.; Ray, D.; Armentrout, P. B. J. Phys. Chem. A1997, 101, 831-839.

226. "Collision-Induced Dissociation Measurements on Li+(H2O)n, n = 1 - 6: The First Direct Measurement of the Li+-OH2 Bond Energy" Rodgers, M. T.; Armentrout, P. B. J. Phys. Chem. A1997, 101, 1238-1249.

227. "Guided Ion Beam Studies of the Reactions of Fen+ (n = 2 - 18) with O2: Iron Cluster Oxide and Dioxide Bond Energies" Griffin, J. B.; Armentrout, P. B. J. Chem. Phys.1997, 106, 4448-4462.

228. "Statistical Modeling of Collision-Induced Dissociation Thresholds" Rodgers, M. T.; Ervin, K. M.; Armentrout, P. B. J. Chem. Phys.1997, 106, 4499-4508.

229. "Gas-Phase Metal Ion Ligation: Collision-Induced Dissociation of Fe(N2)x+ (x = 1 - 5) and Fe(CH2O)x+ (x = 1 - 4)" Tjelta, B. L.; Armentrout, P. B. J. Phys. Chem. A1997, 101, 2064-2073.

230. "Absolute Binding Energies of Lithium Ions to Short Chain Alcohols, CnHn+2O, n = 1 - 4, Determined by Threshold Collision-Induced Dissociation" Rodgers, M. T.; Armentrout, P. B. J. Phys. Chem. A1997, 101, 2614-2625.

231. "Activation of Hydrogen and Methane by Thermalized FeO+ in the Gas Phase as Studied by Multiple Mass-Spectrometric Techniques" Schr�der, D.; Schwarz, H.; Clemmer, D. E.; Chen, Y.-M.; Armentrout, P. B.; Baranov, V. I.; Bohme, D. K. Int. J. Mass Spectrom. Ion Processes1997, 161, 175-191.

232. "Cation-Ether Complexes in the Gas Phase: Bond Dissociation Energies of K+(dimethyl ether)x, x = 1 - 4; K+(1,2-dimethoxyethane)x, x = 1 and 2; and K+(12-crown-4)" More, M. B.; Ray, D.; Armentrout, P. B. J. Phys. Chem. A1997, 101, 4254-4262.

233. "Low Energy Collision-Induced Dissociation and Photodissociation Studies of the (N2O,H2O)+ Cluster Ion" Bastian, M. J.; Dressler, R. A.; Levandier, D. J.; Murad, E.; Muntean, F.; Armentrout, P. B. J. Chem. Phys.1997, 106, 9570-9579.

234. "Cation‑Ether Complexes in the Gas Phase: Bond Dissociation Energies of M+(dimethyl ether)x, x = 1 ‑ 3; M+(1,2‑dimethoxyethane)x, x = 1 and 2; and M+(12-crown-4) where M = Rb and Cs" More, M. B.; Ray, D.; Armentrout, P. B. J. Phys. Chem. A1997, 101, 7007-7017.

235. "Guided Ion Beam Studies of the Reactions of Fen+ (n = 1 - 18) with CO2: Iron Cluster Oxide Bond Energies" Griffin, J. B.; Armentrout, P. B. J. Chem. Phys.1997, 107, 5345-5355.

236. "Dramatic Ligand Effects on Gas-Phase Transition Metal Reactivity and Selectivity: Studies of Fe+, Fe+(H2O), and Fe+(CO) with Propane" Armentrout, P. B.; Tjelta, B. L. Organometallics1997, 16, 5372-5374.

237. "Activation of CH4, C2H6, C3H8, and c-C3H6 by Gas-phase Pd+ and the Thermochemistry of Pd-ligand Complexes" Chen, Y.-M.; Sievers, M. R.; Armentrout, P. B. Int. J. Mass Spectrom. Ion Processes1997, 167/168, 195-212.

238. "Transition Metal Ethene Bonds: Thermochemistry of M+(C2H4)n (M = Ti - Cu, n = 1 and 2) Complexes" Sievers, M. R.; Jarvis, L. M.; Armentrout, P. B. J. Am. Chem. Soc.1998, 120, 1891-1899.

239. "Sequential Bond Dissociation Energies of M+(NH3)x (x = 1 - 4) for M = Ti - Cu" Walter, D.; Armentrout, P. B. J. Am. Chem. Soc.1998, 120, 3176-3187.

240. "Guided Ion Beam Studies of the Reactions of Crn+ (n = 2 - 18) with O2: Chromium Cluster Oxide and Dioxide Bond Energies" Griffin, J. B.; Armentrout, P. B. J. Chem. Phys.1998, 108, 8062-8074.

241. "Guided Ion Beam Studies of the Reactions of Crn+ (n = 1 - 18) with CO2: Chromium Cluster Oxide Bond Energies" Griffin, J. B.; Armentrout, P. B. J. Chem. Phys.1998, 108, 8075-8083.

242. "Guided Ion Beam Studies of the Reactions of Vn+ (n = 2 - 17) with O2: Bond Energies and Dissociation Pathways" Xu, J.; Rodgers, M. T.; Griffin, J. B.; Armentrout, P. B. J. Chem. Phys.1998, 108, 9339-9350.

243. "Reactions of Ground State Ti+ and V+ with Propane: Factors that Govern C-H and C-C Bond Cleavage Product Branching Ratios" van Koppen, P. A. M.; Bowers, M. T.; Haynes, C. L.; Armentrout, P. B. J. Am. Chem. Soc.1998, 120, 5704-5712.

244. "Alkali Ion Carbonyls: Sequential Bond Energies of Li+(CO)x (x = 1 - 3), Na+(CO)x (x = 1, 2), and K+(CO)" Walter, D.; Sievers, M. R.; Armentrout, P. B. Int. J. Mass Spectrom.1998, 173, 93-106.

245. "Statistical Modeling of Competitive Threshold Collision-Induced Dissociation" Rodgers, M. T.; Armentrout, P. B. J. Chem. Phys.1998, 109, 1787-1800.

246. "Gas Phase Activation of Carbon Dioxide by Niobium and Niobium Monoxide Cations" Sievers, M. R.; Armentrout, P. B. Int. J. Mass Spectrom.1998, 179/180, 103-115.

247. "Experimental and Theoretical Studies of Vanadium Sulfur Cation" Kretzschmar, I.; Schr�der, D.; Schwarz, H.; Rue, C.; Armentrout, P. B. J. Phys. Chem. A1998, 102, 10060-10073.

248. "Reactions of CO and CO2 with Gas Phase Mo+, MoO+, and MoO2+" Sievers, M. R.; Armentrout, P. B. J. Phys. Chem. A1998, 102, 10754-10762.

249. "Intrinsic Affinities of Alkali Cations for 15-Crown-5 and 18-Crown-6: Bond Dissociation Energies of Gas-Phase M+-Crown Ether Complexes" More, M. B.; Ray, D.; Armentrout, P. B. J. Am. Chem. Soc.1999, 121, 417-423.

250. "Reactions of Y+ , YO+ and YO2+ with CO and CO2" Sievers, M. R.; Armentrout, P. B. Inorg. Chem.1999, 38, 397-402.

251. "Reactions of Cu+(1S and 3D) with O2, CO, CO2, NO, N2O, and NO2 Studied by Guided Ion Beam Mass Spectrometry" Rodgers, M. T.; Walker, B.; Armentrout, P. B. Int. J. Mass Spectrom.1999, 182/183, 99-120.

252. "Is the Kinetic Method a Thermodynamic Method?" Armentrout, P. B. J. Mass Spectrom.1999, 34, 74-78.

253. "Kinetic-Energy Dependence of Competitive Spin-Allowed and Spin-Forbidden Reactions: V+ + CS2" Rue, C.; Armentrout, P. B.; Kretzschmar, I.; Schr�der, D.; Harvey, J. N.; Schwarz, H. J. Chem. Phys.1999, 110, 7858-7870.

254. "Oxidation of CO and Reduction of CO2 by Gas Phase Zr+, ZrO+, and ZrO2+" Sievers, M. R.; Armentrout, P. B. Int. J. Mass Spectrom.1999, 185-187, 117-129.

255. "Absolute Alkali Metal Ion Binding Affinities of Several Azoles Determined by Threshold Collision-Induced Dissociation" Rodgers, M. T.; Armentrout, P. B. Int. J. Mass Spectrom.1999, 185-187, 359-380.

256. "Absolute Binding Energies of Sodium Ions to Short Chain Alcohols, CnH2n+2O, n = 1 - 4, Determined by Threshold Collision-Induced Dissociation Experiments and Ab Initio Theory" Rodgers, M. T.; Armentrout, P. B. J. Phys. Chem. A1999, 103, 4955-4963.

257. "On the Structural Dichotomy of Cationic, Anionic, and Neutral FeS2" Schr�der, D.; Kretzschmar, I.; Schwarz, H.; Rue, C.; Armentrout, P. B. Inorg. Chem.1999, 38, 3474-3480.

258. "Hydrodesulfurization of FeS+: Predominance of Kinetic Over Thermodynamic Control" B�rsch, S.; Kretzschmar, I.; Schr�der, D.; Schwarz, H.; Armentrout, P. B. J. Phys. Chem. A1999, 103, 5925-5934.

259. "Activation of C2H6, C3H8, HC(CH3)3, and c-C3H6 by Gas-Phase Ru+ and the Thermochemistry of Ru-ligand Complexes" Armentrout, P. B.; Chen, Y.-M. J. Am. Soc. Mass Spectrom.1999, 10, 821-839.

260. "Rydberg and PFI-ZEKE spectra of YO" Linton, C.; Simard, B.; Loock, H. P.; Wallin, S.; Rothschopf, G. K.; Gunion, R. F.; Morse, M. D.; Armentrout, P. B. J. Chem. Phys.1999, 111, 5017-5026.

261. "Gas Phase Organometallic Chemistry" Armentrout, P. B. Organometallic Bonding and Reactivity, Brown, J. M.; Hofmann, P. Eds.; Topics in Organometallic Chemistry, Vol. 4; Springer-Verlag: Berlin, 1999; pp 1-45.

262. "Thermochemistry and Reactivity of Transition Metal Cluster Ions" Armentrout, P. B.; Griffin, J. B.; Concei��o, J. In Progress in Physics of Clusters, Chuev, G. N.; Lakhno, V. D.; Nefedov, A. P. (Eds.); World Scientific: Singapore, 1999; pp 198-225.

263. "Cation-Ether Complexes in the Gas Phase: Thermodynamic Insight into Molecular Recognition" Armentrout, P. B. Int. J. Mass Spectrom. (Special Issue: Molecular Recognition) 1999, 193, 227-240.

264. "Kinetic Energy Dependence of Ion-Molecule Reactions Related to Plasma Chemistry" Armentrout, P. B. Fundamentals of Plasma Chemistry, Inokuti, M.; Becker, K. (Eds.) Adv. Atomic, Molec., and Optical Phys. Vol. 43; Academic: New York, 2000; pp 187-229.

265. "Collision-Induced Dissociation and Theoretical Studies of Mg+ Complexes with CO, CO2, NH3, CH4, CH3OH, and C6H6" Andersen, A.; Muntean, F.; Walter, D.; Rue, C.; Armentrout, P. B. J. Phys. Chem. A2000, 104, 692-705.

266. "Activation of CH4, C2H6, and C3H8 by Gas-Phase Nb+ and the Thermochemistry of Nb-ligand complexes" Sievers, M. R.; Chen, Y.-M.; Haynes, C. L.; Armentrout, P. B. Int. J. Mass Spectrom. (Squires Memorial Issue) 2000, 195/196, 149-170.

267. "An Absolute Sodium Cation Affinity Scale: Threshold Collision-Induced Dissociation Experiments and Ab Initio Theory" Armentrout, P. B.; Rodgers, M. T. J. Phys. Chem. A (Goddard Honor Issue) 2000, 104, 2238-2247.

268. "Entropy Measurements and the Kinetic Method: A Statistically Meaningful Approach" Armentrout, P. B. J. Am. Soc. Mass Spectrom.2000, 11, 371-379.

269. "Thermochemistry and Reactivity of Cationic Scandium and Titanium Sulfide in the Gas Phase" Kretzschmar, I.; Schr�der, D.; Schwarz, H.; Rue, C.; Armentrout, P. B. J. Phys. Chem. A2000, 104, 5046-5058.

270. "Noncovalent Metal-Ligand Bond Energies as Studied by Threshold Collision-Induced Dissociation" Rodgers, M. T.; Armentrout, P. B. Mass Spectrometry Reviews (Invited contribution), 2000, 19, 215-247.

271. "Noncovalent Interactions of the Nucleic Acid Bases (Uracil, Thymine, and Adenine) with Alkali Metal Ions. Threshold Collision-Induced Dissociation and Theoretical Studies" Rodgers, M. T.; Armentrout, P. B. J. Am. Chem. Soc.2000, 122, 8548-8558.

272. "Collision-Induced Dissociation Dynamics of the [OCS�C2H2]+ Complex. A Combined Experimental and Theoretical Study" Muntean, F.; Armentrout, P. B. Z. Phys. Chem.2000, 214, 1035-1063.

273. "Guided Ion Beam Studies of the Reactions of Crn+ (n = 2 - 14) with D2. Cluster-Deuteride Bond Energies as a Chemical Probe of Cluster Electronic Structure" Concei��o, J.; Liyanage, R.; Armentrout, P. B. Chem. Phys. (Special Issue: Metal Clusters and Their Reactions)2000, 262, 115-130.

274. "Absolute Binding Energies of Alkali-Metal Cation Complexes with Benzene Determined by Threshold Collision-Induced Dissociation Experiments and Ab Initio Theory" Amicangelo, J. C.; Armentrout, P. B. J. Phys. Chem. A2000, 104, 11420-11432.

275. "Kinetic Energy Dependence of Ion-Molecule Reactions: Guided Ion Beams and Threshold Measurements" Armentrout, P. B. Int. J. Mass Spectrom. 2000, 200, 219-241.

276. "Determination of Weak Fe+-L Bond Energies (L = Ar, Kr, Xe, N2, CO2) by Ligand Exchange Reactions and Collision-Induced Dissociation" Tjelta, B. L.; Walter, D.; Armentrout, P. B. Int. J. Mass Spectrom. (Special Issue: Gas Phase Metal Ion Chemistry) 2001, 204, 7-21.

277. "Photodissociation Measurements of Bond Dissociation Energies: D0(Al2-Al), D0(TiO+‑Mn), and D0(V2+-V)" Fu, Z.; Russon, L. M.; Morse, M. D.; Armentrout, P. B. Int. J. Mass Spectrom. (Special Issue: Gas Phase Metal Ion Chemistry). 2001, 204, 143-157.

278. "Methane to Methanethiol Conversion by FeS+ - A Combined Experimental and Theoretical Study" B�rsch, S.; Schr�der, D.; Schwarz, H.; Armentrout, P. B. J. Phys. Chem. A2001, 105, 2005-2014.

279. "Collision-Induced Dissociation and Theoretical Studies of Cu+ - Dimethyl Ether Complexes" Koizumi, H.; Zhang, X.-G.; Armentrout, P. B. J. Phys. Chem. A 2001, 105, 2444-2452.

280. "Reactions and Thermochemistry of Small Transition Metal Cluster Ions" Armentrout, P. B. Ann. Rev. Phys. Chem.2001, 52, 423-461.

281. "Collision-Induced Dissociation and Theoretical Studies of Cu+-Dimethoxyethane Complexes" Koizumi, H.; Armentrout, P. B. J. Am. Soc. Mass Spectrom.2001, 12, 480-489.

282. "The Binding in Neutral and Cationic 3d and 4d Transition-Metal Monoxides and –sulfides" Kretzschmar, I.; Schr�der, D.; Schwarz, H.; Armentrout, P. B. Advances in Metal and Semiconductor Clusters, Duncan, M. A. (Ed.); 2001, 5, 347-394.

283. "The Potential Energy Surface for Activation of Methane by Pt+: A Detailed Guided-Ion Beam Study" Zhang, X.-G.; Liyanage, R.; Armentrout, P. B. J. Am. Chem. Soc.2001, 123, 5563-5575.

284. "Guided Ion Beam Study of Collision-Induced Dissociation Dynamics: Integral and Differential Cross Sections" Muntean, F.; Armentrout, P. B. J. Chem. Phys.2001, 115, 1213-1228.

285. "Guided Ion Beam Studies of the Reactions of Fe+ and Co+ with CS2 and COS" Rue, C.; Armentrout, P. B.; Kretzschmar, I.; Schr�der, D.; Schwarz, H. J. Phys. Chem. A2001, 105, 8456-8464.

286. "Sequential Bond Energies of Pt(CO)x+ (x = 1 – 4) Determined by Collision Induced Dissociation" Zhang, X.-G.; Armentrout, P. B. Organometallics2001, 20, 4266-4273.

287. "Guided Ion Beam Studies of the State-Specific Reactions of Cr+ and Mn+ with CS2 and COS" Rue, C.; Armentrout, P. B.; Kretzschmar, I.; Schr�der, D.; Schwarz, H. Int. J. Mass Spectrom. (Nibbering issue) 2001, 210/211, 283-301.

288. "Activation of Methane by Size-Selected Iron Cluster Cations, Fen+ (n = 2 - 15): Cluster-CHx (x = 0 – 3) Bond Energies and Reaction Mechanisms" Liyanage, R.; Zhang, X.-G.; Armentrout, P. B. J. Chem. Phys.2001, 115, 9747-9763.

289. "Relative and Absolute Bond Dissociation Energies of Sodium Cation Complexes Determined Using Competitive Collision-Induced Dissociation Experiments" Amicangelo, J. C.; Armentrout, P. B. Int. J. Mass Spectrom. (Cooks issue) 2001, 212, 301-325.

290. "Guided Ion Beam Studies of the Reactions of Vn+ (n = 2 - 13) with D2. Cluster-deuteride Bond Energies as a Chemical Probe of Cluster Electronic Structure" Liyanage, R.; Concei��o, J.; Armentrout, P. B. J. Chem. Phys.2002, 116, 936-945.

291. "Influence of d Orbital Occupation on the Binding of Metal Ions to Adenine" Rodgers, M. T.; Armentrout, P. B. J. Am. Chem. Soc.2002, 124, 2678-2691.

292. "Reactions of Pt+ with H2, D2, and HD: Effect of Lanthanide Contraction on Reactivity and Thermochemistry" Zhang, X.-G.; Armentrout, P. B. J. Chem. Phys.2002, 116, 5565-5573.

293. "Reactions of Ta+ and W+ with H2, D2, and HD: Effect of Lanthanide Contraction and Spin-Orbit Interactions on Reactivity and Thermochemistry" Zhang, X.-G.; Rue, C.; Shin, S.-Y.; Armentrout, P. B. J. Chem. Phys.2002, 116, 5574-5583.

294. "Modeling Kinetic Shifts in Threshold Collision-Induced Dissociation. Case Study: Dichlorobenzene Cation Dissociation" Muntean, F.; Heumann, L.; Armentrout, P. B. J. Chem. Phys.2002, 116, 5593-5602.

295. "Not Just a Structural Tool: The Use of Guided Ion Beam Tandem Mass Spectrometry to Determine Thermochemistry" Armentrout, P. B. J. Am. Soc. Mass Spectrom.2002, 13, 419-434.

296. "Guided Ion Beam Studies of the Reaction of Nin+ (n = 2 - 16) with D2: Nickel Cluster-deuteride Bond Energies" Liu, F.; Liyanage, R.; Armentrout, P. B. J. Chem. Phys.2002, 117, 132-141.

297. "Modeling Kinetic Shifts for Tight Transition States in Threshold Collision-Induced Dissociation. Case Study: Phenol Cation" Muntean, F.; Armentrout, P. B. J. Phys. Chem. B (J. C. Tully Honor Issue) 2002, 106, 8117-8124.

298. "Guided Ion Beam Studies of the Reactions of Ni+, Cu+, and Zn+ with CS2 and COS" Rue, C.; Armentrout, P. B.; Kretzschmar, I.; Schr�der, D.; Schwarz, H. J. Phys. Chem. A (J. L. Beauchamp Festschrift) 2002, 106, 9788-9797.

299. "Bond Dissociation Energies and Structures of CuNO+ and Cu(NO)2+" Koszinowski, K.; Schr�der, D.; Schwarz, H.; Holthausen, M. C.; Sauer, J.; Koizumi, H.; Armentrout, P. B. Inorg. Chem.2002, 41, 5882-5890 (Addition/Correction) 2002, 41, 7170.

300. "An Experimental and Theoretical Dissection of Sodium Cation/Glycine Interactions" Moision, R. M.; Armentrout, P. B. J. Phys. Chem. A2002, 106, 10350-10362.

301. "Thermochemistry of Small Cationic Iron-Sulfur Clusters" Koszinowski, K.; Schr�der, D.; Schwarz, H.; Liyanage, R.; Armentrout, P. B. J. Chem. Phys.2002, 117, 10039-10056.

302. "Collision-Induced Dissociation and Theoretical Studies of K+ Complexes with Ammonia: A Test of Theory for Potassium Ions" Iceman, C.; Armentrout, P. B. Int. J. Mass Spectrom. (Honor issue for J. L. Beauchamp) 2003, 222, 329-349.

303. "Sequential Bond Energies of Pt+(NH3)x (x = 1 – 4) Determined by Collision-induced Dissociation and Theory" Liyanage, R.; Styles, M. L.; O'Hair, R. A. J.; Armentrout, P. B. Int. J. Mass Spectrom. (Honor issue for Rob Dunbar) 2003, 227, 47-62.

304. "Collision-Induced Dissociation and Theoretical Studies of Ag+(methanol)n, n = 1 – 4" Koizumi, H.; Larson, M.; Armentrout, P. B.; Feller, D. J. Phys. Chem A,2003, 107, 2829-2838.

305. "Guided Ion Beam Studies of Transition Metal-Ligand Thermochemistry" Armentrout, P. B. Int. J. Mass Spectrom. (Special Issue on Thermochemistry) 2003, 227, 289-302.

306. "Threshold Collision-Induced Dissociations for the Determination of Accurate Gas-Phase Binding Energies and Reaction Barriers" Armentrout, P. B. in Modern Mass Spectrometry, Schalley, C., Ed.; Topics in Current Chemistry, Springer-Verlag: Berlin, 2003, 225, 233 –262.

307. "Activation of CH4 by Gas-phase Zr+ and the Thermochemistry of Zr‑ligand Complexes" Armentrout, P. B.; Sievers, M. R. J. Phys. Chem. A2003, 107, 4396-4406.

308. "Activation of C2H6, C3H8, and c-C3H6 by Gas-phase Zr+ and the Thermochemistry of Zr‑ligand Complexes" Sievers, M. R.; Armentrout, P. B. Organometallics, 2003, 22, 2599-2611.

309. "Thermochemistry: Definitions and Tabulations" Ervin, K. M.; Armentrout, P. B. In The Encyclopedia of Mass Spectrometry. Volume 1: Theory and Ion Chemistry, Armentrout, P. B., Ed.; Elsevier: Amsterdam, 2003, 309-315.

310. "Reaction Threshold Energy Measurements" Armentrout, P. B. In The Encyclopedia of Mass Spectrometry. Volume 1: Theory and Ion Chemistry, Armentrout, P. B., Ed.; Elsevier: Amsterdam, 2003, 417-426.

311. "Collision-induced Dissociation" Armentrout, P. B. In The Encyclopedia of Mass Spectrometry. Volume 1: Theory and Ion Chemistry, Armentrout, P. B., Ed.; Elsevier: Amsterdam, 2003, 426-434.

312. "Single Collisions" Armentrout, P. B. In The Encyclopedia of Mass Spectrometry. Volume 1: Theory and Ion Chemistry, Armentrout, P. B., Ed.; Elsevier: Amsterdam, 2003, 451-455.

313. "Metal Ion Solvation" Armentrout, P. B. In The Encyclopedia of Mass Spectrometry. Volume 1: Theory and Ion Chemistry, Armentrout, P. B., Ed.; Elsevier: Amsterdam, 2003, 751-763.

314. "Transition Metal Ion Chemistry" Armentrout, P. B. In The Encyclopedia of Mass Spectrometry. Volume 1: Theory and Ion Chemistry, Armentrout, P. B., Ed.; Elsevier: Amsterdam, 2003, 800-810.

315. "Sequential Bond Energies of Ag+(H2O)n and Ag+(dimethyl ether)n, n = 1 – 4, Determined by Threshold Collision-induced Dissociation" Koizumi, H.; Larson, M.; Muntean, F.; Armentrout, P. B. Int. J. Mass Spectrom. (Honor issue for H. Schwarz) 2003, 228, 221-235.

316. "Structure, Thermochemistry, and Reactivity of MSn+ Cations (M = V, Mo; n = 1 - 3) in the Gas Phase" Kretzschmar, I.; Schr�der, D.; Schwarz, H.; Armentrout, P. B. Int. J. Mass Spectrom. (Honor issue for H. Schwarz), 2003, 228, 439-456.

317. "Guided Ion Beam Studies of the Reactions of Nin+ (n = 2 – 18) with O2: Nickel Cluster Oxide and Dioxide Bond Energies" Vardhan, D.; Liyanage, R.; Armentrout, P. B. J. Chem. Phys.2003, 119, 4166-4178.

318. "Modeling Kinetic Shifts and Competition in Threshold Collision-induced Dissociation. Case Study: n-Butylbenzene Cation Dissociation" Muntean, F.; Armentrout, P. B. J. Phys. Chem. A2003, 107, 7413-7422.

319. "Thermodynamics of Ammonia Activation by Iron Cluster Cations. Guided Ion Beam Studies of the Reactions of Fen+ (n = 2 - 10, 14) with ND3" Liyanage, R.; Griffin, J. B.; Armentrout, P. B. J. Chem. Phys. 2003, 119, 8979-8995.

320. "Activation of O2, CO, and CO2 by Pt+: The Thermochemistry of PtO+" Zhang, X.-G.; Armentrout, P. B. J. Phys. Chem. A2003, 107, 8904-8914.

321. "Activation of O2 and CO2 by PtO+: The Thermochemistry of PtO2+" Zhang, X.-G.; Armentrout, P. B. J. Phys. Chem. A2003, 107, 8915-8922.

322. "Guided Ion Beam and Ab initio Studies of Platinum Chloride Cations" Liyanage, R.; Styles, M. L.; O'Hair, R. A. J.; Armentrout, P. B. J. Phys. Chem. A2003, 107, 10303-10310.

323. "The Thermochemistry of Adsorbates on Transition Metal Cluster Ions: Relationship to Bulk Phase Properties" Armentrout, P. B. Eur. J. Mass Spectrom.2003, 9, 531-538.

324. "Gas Phase Coordination Chemistry" Rodgers, M. T.; Armentrout, P. B. In Comprehensive Coordination Chemistry II: From Biology to Nanotechnology. Volume 2: Fundamentals, Lever, A. B. P., Ed.; Elsevier: Dordrecht, 2004, 141-158.

325. "The Kinetic Energy Dependence of Association Reactions. A New Thermokinetic Method for Large Systems" Koizumi, H.; Armentrout, P. B. J. Chem. Phys.2003, 119, 12819-12829.

326. "Reaction of Cu+ with Dimethoxyethane: Competition between Association and Multiple Dissociation Channels" Koizumi, H.; Muntean, F.; Armentrout, P. B. J. Chem. Phys. 2004, 120, 756-766.

327. "Fundamentals of Ion-molecule Chemistry" Armentrout, P. B. J. Anyl. Atom. Spec. (Special issue on Collision and Reaction Cell Techniques in Atomic Mass Spectrometry) 2004, 19, 571 – 580.

328. "An Experimental and Theoretical Dissection of Potassium Cation/Glycine Interactions" Moision, R. M.; Armentrout, P. B. Phys. Chem. Chem. Phys.2004, 6, 2588 – 2599.

329. "Probes of Spin-conservation in Heavy Metal Reactions: Experimental and Theoretical Studies of the Reactions of Re+ with H2, D2, and HD" Armentrout, P. B.; Li, F.-X. J. Chem. Phys.2004, 121, 248-256.

330. "Systematic and Random Errors in Ion Affinities and Activation Entropies from the Extended Kinetic Method" Ervin, K. M.; Armentrout, P. B. J. Mass Spectrom. (Special Commentary), 2004, 39, 1004–1015.

331. "Is Spin Conserved in Heavy Metal Systems? Experimental and Theoretical Studies of the Reaction of Re+ with Methane" Armentrout, M. M.; Li, F.-X.; Armentrout, P. B. J. Phys. Chem. A (Special Issue honoring Tom Baer), 2004, 108, 9660-9672.

332. "The Mechanism of Proton Exchange: Guided Ion Beam Studies of the Reactions, H(H2O)n+ (n = 1 - 4) + D2O and D(D2O)n+ (n = 1 - 4) + H2O" Honma, K.; Armentrout, P. B. J. Chem. Phys.2004, 121, 8307-8320.

333. "Ligand Exchange Reactions of Sodium Cation Complexes Examined Using Guided Ion Beam Mass Spectrometry: Relative and Absolute Dissociation Free Energies and Entropies" Amicangelo, J. C.; Armentrout, P. B. J. Phys. Chem. A.2004, 108, 10698-10713.

334. "Methane Activation by Nickel Cluster Cations, Nin+ (n = 2 - 16): Reaction Mechanisms and Thermochemistry of Cluster-CHx (x = 0 – 3) Complexes" Liu, F.; Zhang, X.-G.; Liyanage, R.; Armentrout, P. B. J. Chem. Phys.2004, 121, 10976-10990.

335. "A Thermodynamic "Vocabulary" for Metal Ion Interactions in Biological Systems" Rodgers, M. T.; Armentrout, P. B. Accts. Chem. Res.2004, 37, 989-998.

336. "Metal Ion Affinities, Experiment and Theory" Armentrout, P. B. In The Encyclopedia of Mass Spectrometry. Volume 4: Fundamentals of and Applications to Organic (and Organometallic) Compounds, Nibbering, N. M. M., Ed.; Elsevier: Amsterdam, 2005, 88‑96.

337. "Metal Ion Complexes, Overview" Armentrout, P. B. In The Encyclopedia of Mass Spectrometry. Volume 4: Fundamentals of and Applications to Organic (and Organometallic) Compounds, Nibbering, N. M. M., Ed.; Elsevier: Amsterdam, 2005, 575‑577.

338. "Sequential Bond Energies of Water to Sodium Glycine Cation" Ye, S. J.; Moision, R. M.; Armentrout, P. B. Int. J. Mass Spectrom.2005, 240, 233–248.

339. "Ammonia Activation by Iron: State-Specific Reactions of Fe+ (6D, 4F) with ND3 and the Reaction of FeNH+ with D2" Liyanage, R.; Armentrout, P. B. Int. J. Mass Spectrom. (Honor issue for W. L. Hase)2005, 241, 243-260.

340. "Activation of CH4 by gas-phase Ni+ and the thermochemistry of Ni‑ligand complexes" Liu, F.; Zhang, X.-G.; Armentrout, P. B. Phys. Chem. Chem. Phys. (Honor issue for V. E. Bondybey)2005, 7, 1054 - 1064.

341. "Guided Ion Beam Study of Potential Energy Surfaces for Platinum Interactions with Nitrogen Oxides", Zhang, X.-G.; Armentrout, P. B. Eur. J. Mass Spectrom. (Honor issue for John Holmes),2004, 10, 963-975.

342. "Guided Ion Beam and Theoretical Study of the Reactions of Ir+ with H2, D2, and HD" Li, F.-X.; Zhang, X.-G.; Armentrout, P. B. J. Phys. Chem. B (Honor issue for George Flynn),2005, 109, 8350-8357.

343. "Guided Ion Beam Studies of the Kinetic Energy Dependent Reactions of Con+ (n = 2 - 16) with D2: Cobalt Cluster-Deuteride Bond Energies" Liu, F.; Armentrout, P. B. J. Chem. Phys.2005, 122, 194320-1-12.

344. "Heats of Formation of Co(CO)2NOPR3, R = CH3 and C2H5, and Its Ionic Fragments" Gengeliczki, Z.; Szt�ray, B.; Baer, T.; Iceman, C.; Armentrout, P. B. J. Am. Chem. Soc.2005, 127, 9393-9402.

345. "Guided Ion Beam Studies of the Reactions of Con+ (n = 2 - 20) with O2: Cobalt Cluster-Oxide and Dioxide Bond Energies" Liu, F.; Li, F.-X.; Armentrout, P. B. J. Chem. Phys.2005, 123, 064304-1-15.

346. "Sequential bond energies of Fe+(CO2)n, n = 1 – 5, determined by threshold collision-induced dissociation and ab initio theory" Armentrout, P. B.; Koizumi, H.; McKenna, M. J. Phys. Chem A (Jack Simons Festschrift), 2005, 109, 11365-11375.

347. "Guided-Ion Beam and Theoretical Study of the Potential Energy Surface for Activation of Methane by W+" Armentrout, P. B.; Shin, S.; Liyanage, R. J. Phys. Chem A (Bill Hase Festschrift),2006, 110, 1242-1260.

348. "Gas-phase thermochemistry of the early cationic transition-metal sulfides of the second row: YS+, ZrS+, and NbS+" Kretzschmar, I.; Schr�der, D.; Schwarz, H.; Armentrout, P. B. Int. J. Mass Spectrom. (Honor Issue for Chava Lifshitz), 2006, 249–250, 263–278.

349. "Thermochemistry of the Activation of N2 on Iron Cluster Cations: Guided ion beam studies of the reactions of Fen+ (n = 1 - 19) with N2" Tan, L.; Liu, F.; Armentrout, P. B. J. Chem. Phys.,2006, 124, 084302-1-14.

350. "The Special Five-Membered Ring of Proline: An Experimental and Theoretical Investigation of Alkali Metal Cation Interactions with Proline and Its Four- and Six-Membered Ring Analogues" Moision, R. M.; Armentrout, P. B. J. Phys. Chem. A 2006, 110, 3933-3946.

351. "Activation of CH4 by gas-phase Mo+ and the thermochemistry of Mo-ligand complexes" Armentrout, P. B. J. Phys. Chem A (Chava Lifshitz Festschrift), in press.

352. "The Most Reactive Third-Row Transition Metal: Guided Ion Beam and Theoretical Studies of the Activation of Methane by Ir+" Li, F.-X.; Zhang, X.-G.; Armentrout, P. B. Int. J. Mass Spectrom. (Honor Issue for D. Bohme), accepted for publication.

353. "Sequential Bond Energies of Water to Sodium Proline Cation" Ye, S. J.; Moision, R. M.; Armentrout, P. B. Int. J. Mass Spectrom. (Solution vs. Gas Phase Biomolecule Structure Special Issue), submitted for publication.

354. "Why is Hafnium So Unreactive? Experimental and Theoretical Studies of the Reaction of Hf + with Methane" Parke, L. G.; Hinton, C. S.; Armentrout, P. B. Int. J. Mass Spectrom. (Ion Catalysis Special Issue), submitted for publication.

355. "Activation of Methane by Gold Cations: Guided Ion Beam and Theoretical Studies" Li, F.-X., Armentrout, P. B. J. Chem. Phys. (Y.T. Lee Festschrift)2006, 125, 133114-1-13.

356. "An Electrospray Ionization Source for Thermochemical Investigation with the Guided Ion Beam Mass Spectrometer" Moision, R. M.; Armentrout, P. B. J. Am. Soc. Mass Spectrom.2007, 18, 1124-1134.

357. "Statistical Modeling of Sequential Collision-Induced Dissociation Thresholds" Armentrout, P. B. J. Chem. Phys.2007, 126, 234302-1-9.

358. "Ion Mobility Studies of Electronically Excited States of Atomic Transition Metal Cations: Development of an Ion Mobility Source for Guided Ion Beam Experiments" Iceman, C.; Rue, C.; Moision, R. M.; Chatterjee, B. K.; Armentrout, P. B. J. Am. Soc. Mass Spectrom. (D. E. Clemmer Biemann Issue),2007, 18, 1196–1205.

359. "Binding Energies for the Inner Hydration Shells of Ca2+: An Experimental and Theoretical Investigation of Ca2+(H2O)x complexes (x = 5 – 9)" Carl, D. R.; Moision, R. M.; Armentrout, P. B. Int. J. Mass Spectrom. (Jean H. Futrell Honor Issue),2007, 265, 308–325.

360. "A Critical Evaluation of the Experimental and Theoretical Determination of Lithium Cation Affinities" Rodgers; M. T.; Armentrout, P. B. Int. J. Mass Spectrom. (Sharon G. Lias Honor Issue),2007, 267, 167-182.

361. "Activation of C2H6 and C3H8 by gas-phase Mo+: Thermochemistry of Mo-ligand complexes" Armentrout, P. B. Organometallics,2007, 26, 5473-5485.

362. "Activation of C2H6 and C3H8 by gas-phase Mo+: Potential energy surfaces and reaction mechanisms" Armentrout, P. B. Organometallics,2007, 26, 5486-5500.

363. "Experimental and Theoretical Studies of the Activation of Methane by Ta+ and the Bond Energies of Ta+-CHx (x = 1 – 3)" Parke, L. G.; Hinton, C. S.; Armentrout, P. B. J. Phys. Chem. C (R. E. Smalley Memorial Issue), in press.

364. "Reactivity and Thermochemistry of Transition Metal Cluster Cations" Armentrout, P. B., Castleman, W. C.; Jena, P., editors, submitted for publication.

365. "Absolute Thermodynamic Measurements of Alkali Metal Cation Interactions with a Simple Dipeptide and Tripeptide" Ye, S. J.; Armentrout, P. B. J. Phys. Chem. B, submitted for publication.

366. "An Experimental and Theoretical Investigation of Alkali Metal Cation Interactions with Hydroxyl Side Chain Amino Acids" Ye, S. J.; Clark, A. A.; Armentrout, P. B. J. Phys. Chem. B, submitted for publication.

367. "Infrared Multiphoton Dissociation Spectroscopy of Cationized Serine: Effects of Alkali-Metal Cation Size on Gas-Phase Conformation" Armentrout, P. B.; Rodgers, M. T.; Oomens, J.; Steill, J. D. J. Phys. Chem. B, submitted for publication.

368. "Infrared Multiphoton Dissociation Spectroscopy of Cationized Threonine: Effects of Alkali-Metal Cation Size on Gas-Phase Conformation" Rodgers, M. T.; Armentrout, P. B.; Oomens, J.; Steill, J. D. J. Phys. Chem. A submitted for publication.

369. "Guided ion beam studies of the reactions of Con+ (n = 1 - 18) with N2: Cobalt cluster mononitride and dinitride bond energies" Liu, F.; Li, M.; Tan, L.; Armentrout, P. B. J. Chem. Phys.2008, 128, 194313-1-12.

370. "Thermodynamics and Mechanism of the Deamidation of Sodium-Bound Asparagine" Heaton, A. L.; Armentrout, P. B. J. Am. Chem. Soc. 2008, 130, 10227-10232.

371. "An Experimental and Theoretical Investigation of Alkali Metal Cation Interactions with Hydroxyl Side Chain Amino Acids" Ye, S. J.; Clark, A. A.; Armentrout, P. B. J. Phys. Chem. B 2008, 112, 10291-10302.

372. "An Experimental and Theoretical Investigation of the Decomposition of Lithiated Hydroxyl Side Chain Amino Acids" Ye, S. J.; Armentrout, P. B. J. Phys. Chem. B2008, 112, 10303-10313.

373. "Dipole Effects on Cation-π Interactions: Absolute Bond Dissociation Energies of Complexes of Alkali Metal Cations to N-methylaniline and N,N-dimethylaniline" Hallowita, N.; Carl, D. R.; Armentrout, P. B.; Rodgers, M. T. J. Phys. Chem. A, 2008, 112, 7996–8008.

374. "Experimental and Theoretical Studies of Potassium Cation Interactions with the Acidic Amino Acids and Their Amide Derivatives" Heaton, A. L.; Armentrout, P. B. J. Phys. Chem. B2008, 112, 12056–12065.

375. "Statistical Rate Theory and Kinetic Energy-Resolved Ion Chemistry – Theory and Applications" Armentrout, P. B.; Ervin, K. M.; Rodgers, M. T. J. Phys. Chem. A (Centennial Feature Article)2008, 112, 10071-10085.

376. "Experimental and Theoretical Studies of Sodium Cation Interactions with D-Arabinose, Xylose, Glucose and Galactose" Heaton, A. L.; Armentrout, P. B. J. Phys. Chem. A2008, 112, 10156-10167.

377. "Energetics and Mechanisms of C-H Bond Activation by a Doubly-charged Metal Ion: Guided ion beam and theoretical studies of Ta2+ + CH4" Parke, L. G.; Hinton, C. S.; Armentrout, P. B. J. Phys. Chem. A2008, 112, 10469–10480.

378. "Reactions of Hf +, Ta+, and W + with O2 and CO: Metal Carbide and Metal Oxide Cation Bond Energies" Hinton, C. S.; Li, F.-X., Armentrout, P. B. Int. J. Mass Spectrom. (Herman Honor Issue)2009, 280, 226–234.

379. "Methane activation by cobalt cluster cations, Con+ (n = 2 - 16): Reaction mechanisms and thermochemistry of cluster-CHx (x = 0 – 3) complexes" Citir, M.; Liu, F.; Armentrout, P. B. J. Chem. Phys.2009, 130, 054309-1-16.

380. "Thermodynamics and Mechanism of Protonated Asparagine Decomposition" Heaton, A. L.; Armentrout, P. B. J. Am. Soc. Mass Spectrom.2009, 20, 852-866.

381. "Infrared Multiphoton Dissociation Spectroscopy of Cationized Asparagine: Effects of Metal Cation Size on Gas-Phase Conformation" Heaton, A. L.; Bowman, V. N.; Oomens, J.; Steill, J. D.; Armentrout, P. B. J. Phys. Chem. A2009, 113, 5519–5530.

382. "An Experimental and Theoretical Study of Alkali Metal Cation/Methionine Interactions" Armentrout, P. B.; Gabriel, A.; Moision, R. M. Int. J. Mass Spectrom. (Bowers Honor Issue), 2009, 283, 56–68.

383. "Kinetic Determination of Potassium Affinities by IRMPD: Elucidation of Precursor Ion Structures" Schäfer, M.; Drayss, M. K.; Blunk, D.; Purcell, J. M.; Hendrickson, C. L.; Marshall, A. G.; Mookherjee, A.; Armentrout, P. B. J. Phys. Chem. A 2009, 113, 7779–7783.

384. "Experimental and Theoretical Studies of the Reaction of Rh+ with CS2 in the Gas-phase: Thermochemistry of RhS+ and RhCS+" Armentrout, P. B.; Kretzschmar, I. J. Phys. Chem. A 2009, 113, 10955-10965.

385. "Collision-induced Dissociation Studies of FemOn+: Bond Energies in Small Iron Oxide Cluster Cations, FemOn+ (m = 1 - 3, n = 1 - 6)" Li, M.; Liu, S.-R.; Armentrout, P. B. J. Chem. Phys.2009, 131, 144310-1-16.

386. "Experimental and Theoretical Studies of the Reaction of Pd+ with CS2 in the Gas-phase: Thermochemistry of PdS+ and PdCS+" Armentrout, P. B.; Kretzschmar, I. Inorg. Chem. 2009, 48, 10371–10382. DOI: 10.1021/ic9015959

387. "In-source fragmentation technique for the production of thermalized ions" Carl, D. R.; Moision, R. M.; Armentrout, P. B. J. Am. Soc. Mass Spectrom.2009, 20, 2312–2317. DOI:10.1016/j.jasms.2009.08.024.

388. "Hydration Energies of Zinc (II): Threshold Collision-induced Dissociation Experiments and Theoretical Studies" Cooper, T. E.; Carl, D. R.; Armentrout, P. B. J. Phys. Chem. A,2009, 113, 13727–13741. DOI:10.1021/jp906235y

389. "An Experimental and Theoretical Investigation of the Charge Separation Energies of Hydrated Zinc (II): Redefinition of the Critical Size" Cooper, T. E.; Armentrout, P. B. J. Phys. Chem. A,2009, 113, 13742–13751. DOI:10.1021/jp906241q

390. "Guided ion beam and theoretical studies of the reaction of Ag+ with CS2: Gas-phase thermochemistry of AgS+ and AgCS+ and insight into spin-forbidden reactions" Armentrout, P. B.; Kretzschmar, I. J. Chem. Phys. 2010, 132, 024306-1-10. DOI:10.1063/1.3285837

391. "Threshold Collision-induced Dissociation of Hydrated Cadmium (II): Experimental and Theoretical Investigation of the Binding Energies for Cd2+(H2O)n Complexes (n = 4 – 11)" Cooper, T. E.; Armentrout, P. B. Chem. Phys. Lett. (Invited Frontiers Article)2010, 486, 1–6. DOI:10.1016/j.cplett.s009.12.053

392. "Threshold collision-induced dissociation of Sr2+(H2O)x complexes (x = 1 – 6): An experimental and theoretical investigation of the complete inner shell hydration energies of Sr2+" Carl, D. R.; Chatterjee, B. K.; Armentrout, P. B. J. Chem. Phys.2010, 132, 044303-1-12. DOI:10.1063/1.3292646

393. "An Experimental and Theoretical Study of Alkali Metal Cation Interactions with Cysteine" Armentrout, P. B.; Armentrout, E. I.; Clark, A. A.; Cooper, T. E.; Stennett, E. M. S.; Carl, D. R. J. Phys. Chem. B2010, 114, 3927–3937.

394. "Energetics and Mechanism for the Deamination of Lithiated Cysteine" Armentrout, P. B.; Ye, S. J.; Gabriel, A.; Moision, R. M. J. Phys. Chem. B2010, 114, 3938–3949.

395. "Metal Cation Dependence of Interactions with Amino Acids: Bond Energies of Rb+ to Gly, Ser, Thr, and Pro" Bowman, V. N.; Heaton, A. L.; Armentrout, P. B. J. Phys. Chem. B2010, 114, 4107–4114.

396. "Infrared Multiple Photon Dissociation Spectroscopy of Cationized Methionine: Effects of Alkali-Metal Cation Size on Gas-Phase Conformation" Carl, D. R.; Cooper, T. E.; Oomens, J.; Steill, J. D.; Armentrout, P. B. Phys. Chem. Chem. Phys. (Special Issue: Biomolecular Structures: From Isolated Molecules to Living Cells)2010, 12, 3384 – 3398. DOI: 10.1039/b919039b.

397. "Guided Ion Beam and Theoretical Studies of the Reaction of Ru+ with CS2 in the Gas-phase: Thermochemistry of RuC+, RuS+, and RuCS+" Armentrout, P. B.; Kretzschmar, I. Phys. Chem. Chem. Phys. 2010, 12, 4078 – 4091. DOI:10.1039/b926429a.

398. "Guided Ion Beam and Theoretical Study of the Reactions of Hf+ with H2, D2, and HD" Hinton, C. S.; Armentrout, P. B. J. Chem. Phys. 2010, 133, 124307-1-10. DOI:10.1063/1.3482663.

399. "Guided Ion Beam and Theoretical Studies of Sequential Bond Energies of Water to Sodium Cysteine Cation" Ye, S. J.; Armentrout, P. B. Phys. Chem. Chem. Phys. (Themed Issue: Advances in Mass Spectrometry for Biological Science) 2010, 12, 13419-13433. DOI:10.1039/c0cp00302f

400. "Oxidation of Atomic Gold Ions: Thermochemistry for the Activation of O2 and N2O by Au+ (1S0 and 3D)" Li, F.-X.; Gorham, K.; Armentrout, P. B. J. Phys. Chem. A (K. Muller-Dethlefs Festschrift) 2010, 114, 11043–11052.DOI: 10.1021/jp100566t.

401. "Infrared Multiple Photon Dissociation Spectroscopy of Cationized Cysteine: Effects of Metal Cation Size on Gas-Phase Conformation" Citir, M.; Stennett, E. M. S.; Oomens, J.; Steill, J. D.; Rodgers, M. T.; Armentrout, P. B. Int. J. Mass Spectrom. (Special Issue: Ion Spectroscopy)2010, 297, 9 – 17. DOI:10.1016/j.ijms.2010.04.009

402. "IR Spectroscopy of Cationized Aliphatic Amino Acids: Stability of Charge-solvated Structure Increases with Metal Cation Size" Drayß, M. K.; Armentrout, P. B.; Oomens, J.; Schäfer, M. Int. J. Mass Spectrom. (Special Issue: Ion Spectroscopy)2010, 297, 18–27. DOI:10.1016/j.ijms.2010.04.010

403. "Zn2+ has a Primary Hydration Sphere of Five: IR Action Spectroscopy and Theoretical Studies of Hydrated Zn2+ Complexes" Cooper, T. E.; O'Brien, J. T.; Williams, E. R.; Armentrout, P. B. J. Phys. Chem. A2010, 114, 12646–12655. DOI: 10.1021/jp1078345

404. "Reactivity and Thermochemistry of Transition Metal Cluster Cations" Armentrout, P. B. in Nanoclusters: A Bridge across Disciplines, Jena, P.; Castleman, W. C.; Eds.; Elsevier, Amsterdam: The Netherlands, 2010, pp. 269-297.

405. "Guided Ion Beam and Theoretical Study of the Reactions of Au+ with H2, D2, and HD" Li, F.-X.; Hinton, C. S.; Citir, M.; Liu, F.-Y.; Armentrout, P. B. J. Chem. Phys.2011, 134, 024310-1-10. doi: 10.1063/1.3514899

406. "Electronic State Chromatography: Ion Mobility of Atomic Cations and Their Electronic States" Armentrout, P. B. in Ion Mobility Spectroscopy - Mass Spectrometry: Theory and Applications, Wilkins, C.; Trimpin, S., Eds.; CRC Press, Boca Raton, 2011, pp. 31-51.

407. "Sequential Bond Energies and Barrier Heights for the Water Loss and Charge Separation Dissociation Pathways of Cd2+(H2O)n, n = 3 – 11" Cooper, T. E.; Armentrout, P. B. J. Chem. Phys.2011, 134, 114308-1-18. doi: 10.1063/1.3553813

408. "Relative and Absolute Bond Dissociation Energies of Sodium Cation–Alcohol Complexes Determined Using Competitive Collision-Induced Dissociation Experiments" Amicangelo, J. C.; Armentrout, P. B. Int. J. Mass Spectrom. (M. L. Gross Honor Issue) 2011, 301, 45–54. doi: 10.1016/j.ijms.2010.06.024

409. "Infrared Spectroscopy of Divalent Zinc and Cadmium Crown Ether Systems" Cooper, T. E.; Carl, D. R.; Oomens, J.; Steill, J. D.; Armentrout, P. B. J. Phys. Chem. A, 2011, 115, 5408–5422. doi: 10.1021/jp202646y

410. "Theoretical Exploration of Au+ + H2, D2, and HD Reactive Collisions" Dorta-Urra, A.; Zanchet, A.; Roncero, O.; Aguado, A.; Armentrout, P. B. J. Chem. Phys.2011, 135, 091102-1-4. doi: 10.1063/1.3635772

411. "Collision-induced dissociation of MO+ and MO2+ (M = Ta and W): Metal oxide and dioxide cation bond energies" Hinton, C. S.; Citir, M.; Manard, M.; Armentrout, P. B. Int. J. Mass Spectrom. (John R. Eyler Honor Issue) 2011, 308,265– 274. doi:10.1016/j.ijms.2011.06.011

412. "Thermodynamics and Mechanisms for Decomposition of Protonated Glycine and Its Protonated Dimer" Armentrout, P. B.; Heaton, A. L.; Ye, S. J. J. Phys. Chem. A (Pavel Hobza Festschrift),2011, 115, 11144–11155. doi:10.1021/jp2025939

413. "Structural Elucidation of Biological and Toxicological Complexes: Investigation of Monomeric and Dimeric Complexes of Histidine with Multiply Charged Transition Metal (Zn and Cd) Cations using IR Action Spectroscopy" Hofstetter, T. E.; Howder, C.; Berden, G.; Oomens, J.; Armentrout, P. B. J. Phys. Chem. B2011, 115, 12648–12661. doi:10.1021/jp207294b

414. "Guided ion beam and theoretical study of the reactions of Os+ with H2, D2, and HD" Hinton, C. S.; Citir, M.; Armentrout, P. B. J. Chem. Phys.2011, 135, 234302. doi:10.1063/1.3669425

415. "Infrared Multiple Photon Dissociation Spectroscopy of Cationized Histidine: Effects of Metal Cation Size on Gas-Phase Conformation" Citir, M.; Hinton, C. S.; Oomens, J.; Steill, J. D.; Armentrout, P. B. J. Phys. Chem. A2012, 116, 1532-1541. doi:10.1021/jp209636a

416. "Thermodynamics and Mechanisms of Protonated Diglycine Decomposition: A Computational Study" Armentrout, P. B.; Heaton, A. L. J. Am. Soc. Mass Spectrom.2012, 23, 621-631. doi:10.1007/s13361-011-0224-7

417. "Thermodynamics and Mechanisms of Protonated Diglycine Decomposition: A Guided Ion Beam Study" Armentrout, P. B.; Heaton, A. L. J. Am. Soc. Mass Spectrom. 2012, 23, 632-643. doi:10.1007/s13361-011-0225-6

418. "The Simplest b2+ Ion: Determining Its Structure from Its Energetics by a Direct Comparison of the Threshold Collision-induced Dissociation of Protonated Oxazolone and Diketopiperazine" Armentrout, P. B.; Clark, A. A. Int. J. Mass Spectrom. (Harrison Honor Issue)2012, 316–318, 182–191. doi:10.1016/j.ijms.2012.01.004

419. "Experimental investigation of the complete inner shell hydration energies of Ca2+: Threshold collision-induced dissociation of Ca2+(H2O)x complexes (x = 2 – 8)" Carl, D. R.; Armentrout, P. B. J. Phys. Chem. A2012, 116, 3802-3815. doi:10.1021/jp301446v

420. "Metal Cation Dependence of Interactions with Amino Acids: Bond Energies of Cs+ to Gly, Pro, Ser, Thr, and Cys" Armentrout, P. B.; Chen, Y.; Rodgers, M. T. J. Phys. Chem. A 2012, 116, 3989-3999. doi:10.1021/jp3012766\

421. "Infrared Multiple Photon Dissociation Spectroscopy of Protonated Histidine and 4-Phenyl Imidazole" Citir, M.; Hinton, C. S.; Oomens, J.; Steill, J. D.; Armentrout, P. B. Int. J. Mass Spectrom. (Armentrout Honor Issue),2012, 330-332, 6-15. doi:10.1016/j.ijms.2012.06.002

422. "Alkali Metal Cation Interactions with 12-Crown-4 in the Gas Phase: Revisited" Armentrout, P. B.; Austin, C. A.; Rodgers, M. T. Int. J. Mass Spectrom. (Armentrout Honor Issue),2012, 330-332, 16-26. doi:10.1016/j.ijms.2012.06.018

423. "Fragmentation Reactions of Thiourea- and Urea-compounds Examined by Tandem MS-, Energy-resolved CID Experiments, and Theory" Falvo, F.; Fiebig, L.; Dreiocker, F.; Wang, R.; Armentrout, P. B.; Schäfer, M. Int. J. Mass Spectrom. (Armentrout Honor Issue), 2012,330-332, 124-133. doi:10.1016/j.ijms.2012.06.023

424. "Thermochemistry of Alkali Metal Cation Interactions with Histidine: Influence of the Side-Chain" Armentrout, P. B.; Citir, M.; Chen, Y.; Rodgers, M. T. J. Phys. Chem. A, 2012, 116, 11823–11832. doi:10.1021/jp310179c

425. "The Power of Accurate Energetics (or Thermochemistry: What is it Good for?)" Armentrout, P. B. J. Am. Soc. Mass Spectrom. (Invited Critical Insight), 2013, 24, 173-185. doi:10.1007/s13361-012-0515-7

426. "Threshold Collision-Induced Dissociation and Theoretical Studies of Hydrated Fe(II): Binding Energies and Coulombic Barrier Heights" Hofstetter, T. E.; Armentrout, P. B. J. Phys. Chem. A (Peter B. Armentrout Festschrift)2013, 117, 1110-1123. doi:10.1021/jp3044829

427. "Metal-Cyclopentadienyl Bond Energies in Metallocene Cations Measured Using Threshold Collision-Induced Dissociation Mass Spectrometry" Rowland, T. G.; Sztáray, B.; Armentrout, P. B. J. Phys. Chem. A (Peter B. Armentrout Festschrift)2013, 117, 1299-1309. doi:10.1021/jp307418c

428. "Critical Evaluation of Kinetic Method Measurements: Possible Origins of Non-linear Effects" Bourgoin-Voillard, S.; Afonso, C.; Lesage, D.; Zins, E.-L.; Tabet, J.-C.; Armentrout, P. B. J. Am. Soc. Mass Spectrom. 2013, 24, 365-380. doi:10.1007/s13361-012-0554-0

429. "Threshold Collision-Induced Dissociation of Hydrated Magnesium: Experimental and Theoretical Investigation of the Binding Energies for Mg2+(H2O)x complexes (x = 2 – 10)" Carl, D. R.; Armentrout, P. B. ChemPhysChem (Special Issue: Aggregation of Small Molecules)2013, 14, 681-697. doi:10.1002/cphc.201200860

430. "Metal Cation Dependence of Interactions with Amino Acids: Bond Energies of Rb+ and Cs+ to Met, Phe, Tyr, and Trp" Armentrout, P. B.; Yang, B.; Rodgers, M. T. J. Phys. Chem. A 2013, 117, 3771-3781. doi: 10.1021/jp401366g

431. "Thermochemistry of Non-Covalent Ion-Molecule Interactions" Armentrout, P. B.; Rodgers, M. T. Mass Spectrometry2013, 2, S0005.

432. "Structures of the Dehydrogenation Products of Methane Activation by 5d Transition Metal Cations" Lapoutre, V. J. F.; Redlich, B.; van der Meer, A. F. G.; Oomens, J.; Bakker, J. M. Sweeney, A.; Mookherjee, A.; Armentrout, P. B. J. Phys. Chem. A2013, 117, 4115–4126. doi:10.1021/jp400305k

433. "Role of Methylation on the Thermochemistry of Alkali Metal Cation Complexes of Amino Acids: N-Methyl Proline" Mookherjee, A.; Armentrout, P. B. Int. J. Mass Spectrom. (Jennings & Scrivens Honor Issue)2013, 345–347, 109–119. doi:10.1016/j.ijms.2012.08.021

434. "Quantum chemical study of the reactions between Pd+/Pt+ and H2O/H2S" Oier, L.; Matxain, J. M.; Ruipérez, F.; Ugalde, J. M.; Armentrout, P. B. Chem. Eur. J.2013, 19, 8832-8838. doi: 10.1002/chem.201300222

435. "The Bond Energy of ReO+: Guided Ion-Beam and Theoretical Studies of the Reaction of Re+ (7S) with O2" Armentrout, P. B. J. Chem. Phys.2013, 139, 084305. doi: 10.1063/1.4818642

436. "The Bond Energy of IrO+: Guided Ion-Beam and Theoretical Studies of the Reaction of Ir+ (5F) with O2" Armentrout, P. B.; Li, F.-X. J. Phys. Chem. A2013, 117, 7754−7766. doi: 10.1021/jp4063143

437. "Activation of Methane by Os+: Guided Ion Beam and Theoretical Studies" Armentrout, P. B.; Parke, L.; Hinton, C.; Citir, M., ChemPlusChem (Memorial Issue for Detlef Schröder)2013, 78, 1157-1173. doi: 10.1002/cplu.201300147

438. "Guided Ion-Beam and Theoretical Studies of the Reaction of Os+ (6D) with O2: Adiabatic and Nonadiabatic Behavior" Hinton, C. S.; Citir, M.; Armentrout, P. B. Int. J. Mass Spectrom. (Memorial Issue for Detlef Schröder)2013, 354-355, 87-98. doi: 10.1016/j.ijms.2013.05.015

439. “Thermodynamics and Mechanism of Protonated Cysteine Decomposition: A Guided Ion Beam and Computational Study” Armentrout, P. B.; Stennett, E. M. S. J. Am. Soc. Mass Spectrom.2014, 25, 512-523.  DOI: 10.1007/s13361-013-0817-4

440. “Metal Cation Dependence of Interactions with Amino Acids: Bond Dissociation Energies of Rb⁺ and Cs⁺ to the Acidic Amino Acids and Their Amide Derivatives” Armentrout, P. B.; Yang, B.; Rodgers^, M. T. J. Phys. Chem. B, 2014, 118, 4300–4314. DOI: 10.1021/jp5001754

441. “Gas-phase Perspective on the Thermodynamics and Kinetics of Heterogeneous Catalysis” Armentrout, P. B. Catalysis Science and Technology (Invited Perspective)2014, 4, 2741-2755. DOI: 10.1039/c4cy00435c

442. “Theoretical Investigation and Reinterpretation of the Decomposition of Lithiated Proline and N-Methyl Proline” Mookherjee, A.; Armentrout, P. B. Int. J. Mass Spectrom. (Honor Issue for Veronica Bierbaum)2014, 370, 16-28. DOI: 10.1016/j.ijms.2014.06.012; reprinted 2015, 378, 212-224. DOI: 10.1016/j.ijms.2014.08.007

443. “Alkali Metal Cation Interactions with 15-Crown-5 in the Gas Phase: Revisited” Armentrout, P. B.; Austin, C. A.; Rodgers, M. T. J. Phys. Chem. A(Castleman Honor Issue)2014, 118, 8088-8097. DOI: 10.1021/jp4116172

444. “Iron Cluster – CO Bond Energies from the Kinetic Energy Dependence of the Fe_n⁺ (n = 4 – 17) + CO Association Reactions” McNary, C. P.; Armentrout, P. B. Phys. Chem. Chem. Phys. (Special Issue: Size Selected Clusters and Particles: From Physical Chemistry to Catalysis)2014, 16, 26567-26477. DOI:10.1039/c4cp02040e

445. “Guided Ion Beam Studies of the Collision-induced Dissociation of CuOH⁺(H₂O)_n (n = 1 – 4): Comprehensive Thermodynamic Data for Copper Ion Hydration” Sweeney, A. F.; Armentrout, P. B. J. Phys. Chem. A2014, 118, 10210-10222. DOI: 10.1021/jp508962d

 446. “Guided Ion Beam and Computational Studies of the Decomposition of a Model Thiourea Protein Cross-Linker” Wang, R.; Yang, B.; Wu, R. R.; Rodgers, M. T.; Schäfer, M.; Armentrout^, P. B. J. Phys. Chem. B2015, 119, 3727-3742. DOI: 10.1021/jp512997z

447. “Fifty Years of Ion and Neutral Thermochemistry by Mass Spectrometry” Armentrout, P. B. Int. J. Mass Spectrom. (Invited Article: Mass Spectrometry Entering its Second Century: 1960’s Concepts to the Present)2015, 377, 54-63. DOI: 10.1016/j.ijms.2014.04.005

448. “Structural Elucidation of Hydrated CuOH⁺ Complexes using IR Action Spectroscopy and Theoretical Modeling” Sweeney, A. F.; O’Brien, J. T.; Williams, E. R.; Armentrout^, P. B. Int. J. Mass Spectrom. (Honor Issue for Veronica Bierbaum)2015, 378, 270-280.  DOI: 10.1016/j.ijms.2014.08.037

449. “Activation of CH₄ by Th⁺ as Studied by Guided Ion Beam Mass Spectrometry and Quantum Chemistry” Cox, R. M.; Armentrout, P. B.; de Jong, W. A. Inorg. Chem.2015, 54, 3584–3599. DOI: 10.1021/acs.inorgchem.5b00137

450. “Evaluation of the Exothermicity of the Chemi-ionization Reaction Sm + O ® SmO⁺ + e^–” Cox, R. M.; Kim, J.; Armentrout, P. B.; Bartlett, J.; Van Gundy, R. A.; Heaven, M. C.; Ard, S. G.; Melko, J. J.; Shuman, N. S.; Viggiano, A. A. J. Chem. Phys.2015, 142, 134307. DOI: 10.1063/1.4916396

451. “Hydration Enthalpies of Ba²⁺(H₂O)_x, x = 1 – 8: A Threshold Collision-Induced Dissociation and Computational Investigation” Wheeler, O. W.; Carl, D. R.; Hofstetter, T. E.; Armentrout, P. B. J. Phys. Chem. A2015, 119, 3800-3815. DOI: 10.1021/acs.jpca.5b01087

452. “Hydrated Copper Ion Chemistry: Guided Ion Beam and Theoretical Investigation of Cu²⁺(H₂O)_n (n = 7 – 10) Complexes” Sweeney, A. F.; Armentrout, P. B. Eur. J. Mass Spectrom.(Invited Article: 20^th Anniversary Issue)2015, 21, 497-516. DOI: 10.1255/ejms.1334

453. “Structural Characterization of Gas-Phase Cysteine and Cysteine Methyl Ester Complexes with Zinc and Cadmium Dications by Infrared Multiple Photon Dissociation Spectroscopy” Coates, R. A.; McNary, C. P.; Boles, G. C.; Berden, G.; Oomens, J.; Armentrout, P. B. Phys. Chem. Chem. Phys. (Invited Article: Special Issue on Optical Spectroscopy)2015, 17, 25799-25808. DOI: 10.1039/C5CP01500F

454. “Mass Spectrometric Methods for the Determination of Thermodynamic Data” Armentrout, P. B. In The Encyclopedia of Mass Spectrometry. Volume 9: The History of Mass Spectrometry, Yergey, A., Ed.; Elsevier: Amsterdam, in press.

455. “Discriminating Properties of Metal Alkali Ions towards the Constituents of Proteins and Nucleic Acids. Conclusions from Gas-Phase and Theoretical Studies” Rodgers, M. T.; Armentrout, P. B. In Metal Ions in Life Sciences. Volume 16: The Alkali Metal Ions: Their Roles for Life, Sigel, A., Sigel, H., Sigel R. K. O., Eds.; Springer: Cham, Switzerland, in press.

456. “Experimental and Theoretical Investigations of Infrared Multiple Photon Dissociation Spectra of Glutamine Complexes with Zn²⁺ and Cd²⁺” Boles, G. C.; Coates, R. A.; Berden, G.; Oomens, J.; Armentrout, P. B. J. Phys. Chem. B, in press. DOI: 10.1021/acs.jpcb.5b06528

457. “Activation of Carbon Dioxide by a Terminal Uranium-Nitrogen Bond in the Gas-Phase: A Demonstration of the Principle of Microscopic Reversibility” Dau, P. D.; Armentrout, P. B.; Michelini, M. C.; Gibson, J. K. Phys. Chem. Chem. Phys., 2016, 18, 7334-7340. DOI: 10.1039/C6CP00494F

458. “Cationic Noncovalent Interactions: Energetics and Periodic Trends” Rodgers, M. T.; Armentrout, P. B. Chem. Rev. (Thematic Issue: Noncovalent Interactions)2016, 116 (9), 5642–5687. DOI: 10.1021/acs.chemrev.5b00688

459. “Bond Energies of ThO⁺ and ThC⁺: A Guided Ion Beam and Quantum Chemical Investigation of the Reactions of Thorium Cation with O₂ and CO” Cox, R. M.; Citir, M.; Armentrout, P. B.; Battey, S. R.; Peterson. K. A. J. Chem. Phys.2016, 144, 184309. DOI: 10.1063/1.4948812

460. “Mass Spectrometric Methods for the Determination of Thermodynamic Data” Armentrout, P. B. In The Encyclopedia of Mass Spectrometry. Volume 9: Historical Perspectives, Part A: The Development of Mass Spectrometry, Nier, K. A.; Yergey, A.; Gale, P. J., Eds.; Elsevier: Amsterdam, Netherlands, 2016, pp 231 – 239. DOI: 10.1016/B978-0-08-043848-1.00036-5

461. “Thermodynamics and Mechanisms of Protonated Asparaginyl-Glycine Decomposition” Boles, G. C.; Wu, R. R.; Rodgers, M. T.; Armentrout, P. B., J. Phys. Chem. B2016, 120, 6525−6545. DOI: 10.1021/acs.jpcb.6b03253

462. “Zn²⁺ and Cd²⁺ Cationized Serine Complexes: Infrared Multiple Photon Dissociation Spectroscopy and Density Functional Theory Investigations” Coates, R. A.; Boles, G. C.; McNary, C. P.; Berden G.; Oomens, J.; Armentrout, P. B. Phys. Chem. Chem. Phys. 2016, 18, 22434 – 22445. DOI: 10.1039/c6cp03805k; Correction: 2017, 19, 18100 – 18101. DOI: 10.1039/C7CP90143G

463. “Activation of C-H bonds in Pt⁺ + xCH₄ Reactions, where x = 1 – 4: Identification of the Platinum Dimethyl Cation” Wheeler, O. W.; Salem, M.; Gao, A.; Bakker, J. M.; Armentrout, P. B. J. Phys. Chem. A2016, 120, 6216–6227. DOI: 10.1021/acs.jpca.6b05361

464. “Chemi-ionization Reactions of La, Pr, Tb, and Ho with Atomic O and La with N₂O from 200 - 450 K” Ard, S. G.; Shuman, N. S.; Martinez, O.; Armentrout, P. B.; Viggiano, A. A. J. Chem. Phys.2016, 145, 084302. DOI: 10.1063/1.4961263

465. “Gadolinium (Gd) Oxide, Carbide, and Carbonyl Cation Bond Energies and Evaluation of the Gd + O → GdO⁺ + e^– Chemi-Ionization Reaction Enthalpy” Demireva, M.; Kim, J.; Armentrout, P. B. J. Phys. Chem. A2016, 120, 8550–8563. DOI: 10.1021/acs.jpca.6b09309

466. “Guided Ion Beam and Theoretical Studies of the Reactions of Re⁺, Os⁺, and Ir⁺ with CO” Kim, J.; Cox, R. M; Armentrout, P. B. J. Chem. Phys.2016, 145, 194305. DOI: 10.1063/1.4967820

467. “Experimental and Theoretical Investigations of Infrared Multiple Photon Dissociation Spectra of Asparagine Complexes with Zn²⁺ and Cd²⁺ and Their Deamidation Processes” Boles, G. C.; Coates, R. A.; Berden, G.; Oomens, J.; Armentrout, P. B. J. Phys. Chem. B2016, 120, 12486-12500. DOI: 10.1021/acs.jpcb.6b10326; Correction: 2017, 121, 7400. DOI: 10.1021/acs.jpcb.7b06058

468. “Threshold Collision-Induced Dissociation of Proton-Bound Hydrazine and Dimethylhydrazine Clusters” McNary, C. P.; Armentrout, P. B. J. Phys. Chem. A2016, 120, 9690-9701. DOI: 10.1021/acs.jpca.6b09318

469.“Threshold Collision-Induced Dissociation of Protonated Hydrazine and Dimethylhydrazine Clustered with Water” McNary, C. P.; Armentrout, P. B. J. Chem. Phys.2016, 145, 214311. DOI: 10.1063/1.4971238

470. “Methane Activation by 5d Transition Metals: Energetics, Mechanisms, and Periodic Trends” Armentrout, P. B. Chem.: Eur. J. (Invited Minireview), 2017, 23, 10-18. DOI: 10.1002/chem.201602015

471. “Bond Dissociation Energies for Diatomic Molecules Containing 3d Transition Metals: Benchmark Scalar-relativistic Coupled-cluster Calculations for Twenty Molecules” Cheng, L.; Gauss, J.; Ruscic, B.; Armentrout, P. B.; Stanton, J. F. J. Chem. Theory Computation, 2017, 13, 1044-1056. DOI: 10.1021/acs.jctc.6b00970

472. “Thermodynamics and Reaction Mechanisms of Decomposition of the Simplest Protonated Tripeptide, Triglycine: A Guided Ion Beam and Computational Study” Mookherjee, A.; Van Stipdonk, M.J.; Armentrout, P. B. J. Am. Soc. Mass Spectrom.2017, 28, 739-757. DOI: 10.1007/s13361-016-1590-y

473. “Activation of Methane by Ru⁺: Experimental and Theoretical Studies of the Thermochemistry and Mechanism” Armentrout, P. B.; Chen, Y.-M. Int. J. Mass Spectrom. (Nico Nibbering Honor Issue) 2017, 413, 135-149. DOI: 10.1016/j.ijms.2016.05.003

474. “Reactivity of ⁴Fe⁺(CO)_n=0-2 + O₂: Oxidation of CO by O₂ at an Isolated Metal Atom” Ard, S. G.; Martinez, O.; Brown, S. A.; Sawyer, J. C.; Armentrout, P. B.; Viggiano, A. A.; Shuman, N. S. Phys. Chem. Chem. Phys.2017, 19, 8768-8777. DOI: 10.1039/C6CP08703E

475. “Gadolinium Cation (Gd⁺) Reaction with O₂: Potential Energy Surface Mapped Experimentally and with Theory” Demireva, M.; Armentrout, P. B. J. Chem. Phys.2017, 146, 174302. DOI: 10.1063/1.4982683

476. “Potential Energy Surface for Reaction of Sm⁺ + CO₂ ® SmO⁺ + CO: Guided Ion Beam and Theoretical Studies” Armentrout, P. B.; Cox, R. M Phys. Chem. Chem. Phys. 2017, 19, 11075 – 11088. (2017 PCCP HOT Article) DOI: 10.1039/C7CP00914C

477. “Experimental and Theoretical Investigations of Infrared Multiple Photon Dissociation Spectra of Glutamic Acid Complexes with Zn²⁺ and Cd²⁺” Boles, G. C.; Owen, C. J.; Berden, G.; Oomens, J.; Armentrout, P. B. Phys. Chem. Chem. Phys.2017, 19, 12394 - 12406. DOI: 10.1039/C7CP01786C; Correction: 2017, 19, 18774 – 18776. DOI: 10.1039/c7cp90145c

478. “Thermochemical Investigations of Hydrated Nickel Dication Complexes by Threshold Collision-Induced Dissociation and Theory” Coates, R. A.; Armentrout, P. B. J. Phys. Chem. A2017, 121, 3629 – 3646. DOI: 10.1021/acs.jpca.7b00635

479. “How Hot Are Your Ions Really? A Threshold Collision-Induced Dissociation Study of Substituted Benzylpyridinium “Thermometer” Ions” Carpenter, J. E.; McNary, C. P.; Furin, A.; Sweeney, A. F.; Armentrout, P. B. J. Am. Soc. Mass Spectrom. 2017, 28, 1876 – 1888. DOI: 10.1007/s13361-017-1693-0 (2018 Ron Hites Award, ASMS)

480. “Binding Energies of Hydrated Cobalt Hydroxide Ion Complexes: A Guided Ion Beam and Theoretical Investigation” Coates, R. A.; Armentrout, P. B. J. Chem. Phys.2017, 147, 064305. DOI: 10.1063/1.4991557

481. “Non-Adiabatic Behavior in the Homolytic and Heterolytic Bond Dissociation of Protonated Hydrazine: A Guided Ion Beam and Theoretical Investigation” McNary, C. P.; Armentrout, P. B. J. Chem. Phys. 2017, 147, 124306. (2017 Editor’s Choice Article) DOI: 10.1063/1.4997415

482. “Threshold Collision-induced Dissociation and Theoretical Study of Protonated Azobenzene” Rezaee, M.; McNary, C. P.; Armentrout, P. B. J. Chem. Phys.2017, 147, 164308. DOI: 10.1063/1.5000683

483. “Guided Ion Beam and Theoretical Studies of the Bond Energy of SmS⁺” Armentrout, P. B.; Demireva, M.; Peterson, K. A. J. Chem. Phys.2017, 147, 214307. DOI: 10.1063/1.5009916

484. “Binding Energies of Hydrated Cobalt(II) By Collision-Induced Dissociation and Theoretical Studies: Evidence for a New Critical Size” Coates, R. A.; Armentrout, P. B. Phys. Chem. Chem. Phys. 2018, 20, 802-818. (2018 PCCP HOT Article) DOI: 10.1039/C7CP05828D

485. “Structures of the Dehydrogenation Products of Methane Activation by 5d Transition Metal Cations Revisited: Deuterium Labeling and Rotational Contours” Owen, C. J.; Boles, G. C.; Chernyy, V.; Bakker, J. M.; Armentrout^, P. B. J. Chem. Phys.2018, 148, 044307. DOI: /10.1063/1.5016820

486. “Lanthanides as Catalysts: Guided Ion Beam and Theoretical Studies of Sm⁺ + COS” Armentrout, P. B.; Cox, R. M; Sweeny, B. C.; Ard, S. G.; Shuman, N. S.; Viggiano, A. A. J. Phys. Chem. A (W. Lester S. Andrews Festschrift) 2018, 122, 737-749. DOI: 10.1021/acs.jpca.7b09905

487. “Activation of H₂ by Gadolinium Cation (Gd⁺): Bond Energy of GdH⁺ and Mechanistic Insights from Guided Ion Beam and Theoretical Studies” Demireva, M.; Armentrout, P. B. J. Phys. Chem. A2018, 122, 750-761. DOI:10.1021/acs.jpca.7b11471

488. “Activation of CO₂ by Gadolinium Cation (Gd⁺): Energetics and Mechanism from Experiment and Theory” Demireva, M.; Armentrout, P. B. Topics in Catalysis (Size-Selected Clusters as Model Systems for Catalysis)2018, 61, 3-19. DOI: 10.1007/s11244‑017-0858-1

489. “Deamidation of Protonated Asparagine-Valine Investigated by a Combined Spectroscopic, Guided Ion Beam, and Theoretical Study” Kempkes, L. J. M.; Boles, G.C.; Martens, J.; Berden, G.; Armentrout, P. B.; Oomens, J. J. Phys. Chem. A.2018, 122, 2424-2436. DOI: 10.1021/acs.jpca/7b12348

490. “Experimental and Theoretical Investigations of Infrared Multiple Photon Dissociation Spectra of Aspartic Acid Complexes with Zn²⁺ and Cd²⁺” Boles, G. C.; Hightower, R. L.; Coates, R. A.; McNary, C. P.; Berden, G.; Oomens, J.; Armentrout, P. B. J. Phys. Chem. B2018, 122, 3836-3853. DOI: 10.1021/acs.jpcb.8b00801

491. “Second–Shell Thermochemistry for Hydration of Strontium Dications as Determined by Threshold Collision-Induced Dissociation and Computations” Wheeler, O. W.; Carl, D. R.; Armentrout, P. B. Int. J. Mass Spectrom.2018, 429, 76-89. DOI: 10.1016/j.ijms.2017.05.009

492. “Spectroscopic Identification of the Carbyne Hydride Structure of the Dehydrogenation Product of Methane Activation by Osmium Cations” Armentrout, P. B.; Kuijpers, S.; Lushchikova, O. V.; Hightower, R. L.; Boles, G. C.; Bakker, J. M. J. Am. Soc. Mass Spectrom. (R. Julian Biemann Issue: Mass Spectrometry – Photons and Radicals)2018, 29, 1781-1790. DOI: 10.1007/s13361-018-1929-7

493. “Experimental and Theoretical Investigations of Infrared Multiple Photon Dissociation Spectra of Arginine Complexes with Zn²⁺ and Cd²⁺” Chalifoux, A. M.; Boles, G. C.; Berden, G.; Oomens, J.; Armentrout, P. B. Phys. Chem. Chem. Phys.2018, 20, 20712-20725. DOI: 10.1039/c8cp03484b

494. “Perspective: 18-Electrons and Counting” Armentrout, P. B. Science2018, 361, 849-850. DOI: 10.1126/science.aau6622

495. "Structural and Energetic Effects of O2'-Ribose Methylation of Protonated Purine Nucleosides" He, C.; Hamlow, L.; Devereaux, Z.; Zhu, Y.; Nei, Y.; Fan, L.; McNary, C.; Maitre, P.; Steinmetz, V.; Schindler, B.; Compagnon, I.; Armentrout, P. B.; Rodgers, M. T. J. Phys. Chem. B, 2018, 122, 9147–9160. DOI: 10.1021/acs.jpcb.8b07687

496. “Samarium Cation (Sm⁺) Reactions with H₂, D₂, and HD: SmH⁺ Bond Energy and Mechanistic Insights from Guided Ion Beam and Theoretical Studies” Demireva, M.; Armentrout, P. B. J. Chem. Phys.2018, 149, 164304. DOI: 10.1063.1.5053758

497. “Sequential Activation of Methane by Ir⁺: An IRMPD and Theoretical Investigation” Wheeler, O. W.; Salem, M.; Gao, A.; Bakker, J. M.; Armentrout, P. B. Int. J. Mass Spectrom. (H. Schwarz Festscrift) 2019, 435, 78-92. DOI: 10.1016/j.ijms.2018.10.007

498. “Protonated Asparaginyl-Alanine Decomposition: A Guided Ion Beam, SORI-CID, and Computational Analysis” Boles, G. C.; Wu, R. R.; Rodgers, M. T.; Armentrout, P. B. J. Am. Soc. Mass Spectrom.2018, 29, 2341-2359. DOI: 10.1007/s13361-018-2052-5

499. “Experimental and Theoretical Investigations of Infrared Multiple Photon Dissociation Spectra of Lysine Complexes with Zn²⁺ and Cd²⁺” Owen, C. J.; Boles, G. C.; Berden, G.; Oomens, J.; Armentrout, P. B. Eur. J. Mass Spectrom.(In Memorium for Rob C. Dunbar)2019, 25, 97-111. DOI: 10.1177/1469066718792902

500. “Hydration Energies of Iron Hydroxide Cation: A Guided Ion Beam and Theoretical Investigation” Sander, O.; Armentrout, P. B. J. Phys. Chem. A2019123, 1675-1688. DOI: 10.1021/acs.jpca.8b12257

501. “Experimental and Computational Study of the Group 1 Metal Cation Chelates with Lysine: Bond Dissociation Energies, Structures, and Structural Trends” Clark, A. A.; Yang, B.; Rodgers, M. T.; Armentrout, P. B. J. Phys. Chem. B2019, 123, 1983-1997. DOI: 10.1021/acs.jpcb.8b11967

502. “Sigma Bond Activation of Deuterium Mediated by Atomic Cerium Cations: Experiment and Theory” Manard, M. J.; Kemper, P. R.; Trainham, R.; Armentrout, P. B. Int. J. Mass Spectrom. 2019, 441, 19-24. DOI: 10.1016/j.ijms.2019.03.006

503. “Evaluation of the Exothermicity of the Chemi-ionization reaction Nd + O ® NdO⁺ + e^- and Neodymium Oxide, Carbide, Dioxide, and Carbonyl Cation Bond Energies” Ghiassee, M.; Kim, J.; Armentrout, P. B. J. Chem. Phys.2019, 150, 144309. DOI: 10.1063/1.5091679

504. “Bond Dissociation Energy of Au₂⁺: A Guided Ion Beam and Theoretical Investigation” Owen, C. J.; Keyes, N. R.; Xie, C.; Guo, H.; Armentrout, P. B. J. Chem. Phys. (Featured Article) 2019, 150, 174305. DOI: 10.1063/1.5092957

505. “Thermodynamics and Reaction Mechanisms for Decomposition of a Simple Protonated Tripeptide, H⁺GAG: A Guided Ion Beam and Computational Study” Mookherjee, A.; Armentrout, P. B. J. Am. Soc. Mass Spectrom.2019, 30, 1013-1027. DOI: 10.1007/s13361‑019‑02144‑3

506. “Ion Spectroscopy and Guided Ion Beam Studies of Protonated Asparaginyl-Threonine Decomposition: Influence of a Hydroxyl Containing C-Terminal Residue on Deamidation Processes” Boles, G. C.; Kempkes, L. J. M.; Martens, J.; Berden, G.; Oomens, J.; Armentrout, P. B. Int. J. Mass Spectrom.(McLuckey Special Issue)2019, 442, 64-82. DOI: 10.1016/j.ijms.2019.05.010

507. “Metallacyclopropene Structures Identified by IRMPD Spectroscopic Investigation of the Dehydrogenation Reactions of Ta⁺ and TaO⁺ with Ethene” Wheeler, O. W.; Coates, R. A.; Lapoutre, V. J. F.; Bakker, J. M.; Armentrout, P. B. Int. J. Mass Spectrom. (Special Issue on Ion Spectroscopy)2019, 442, 83-94. DOI: 10.1016/j.ijms.2019.04.005

508. “Au₂⁺ cannot catalyze conversion of methane to ethene at low temperature” Shuman, N. S.; Ard, S. G.; Sweeny, B. C.; Pan, H.; Viggiano, A. A.; Keyes, N. R.; Guo, H.; Owen, C. J.; Armentrout, P. B. Catal. Sci. Technol.2019, 9, 2767-2780. (2019 Catalysis Science & Technology HOT Article) DOI: 10.1039/C9CY00523D

509. “Infrared Multiple Photon Dissociation Action Spectroscopy of Protonated Glycine, Histidine, Lysine, and Arginine Complexed with 18-Crown-6 Ether” McNary, C. P.; Nei, Y.-w.; Maitre, P.; Rodgers, M. T.; Armentrout, P. B. Phys. Chem. Chem. Phys.2019, 21, 12625-12639. DOI: 10.1039/C9CP02265A

510. “Bond Energy of ThN⁺: A Guided Ion Beam and Quantum Chemical Investigation of the Reactions of Thorium Cation with N₂ and NO” Cox, R. M; Kafle, A.; Armentrout, P. B.; Peterson, K. A. J. Chem. Phys. 2019, 151, 034304. DOI: 10.1063/1.5111534

511. “Mechanism and Energetics of the Hydrolysis of Th⁺ to Form Th(OD)₃⁺: Guided Ion Beam and Theoretical Studies of ThO⁺, ThO₂⁺, and OThOD⁺ Reacting with D₂O” Kafle, A.; Armentrout, P. B. J. Phys. Chem. A2019, 123, 5893-5905. DOI: 10.1021/acs.jpca.9b03938

512. “Benzhydrylpyridinium Ions: A New Class of Thermometer Ions for the Characterization of the Electrospray-Ionization Process” Rahrt, R.; Auth, T.; Demireva, M.; Armentrout, P. B.; Koszinowski, K. Anal. Chem.2019, 91, 11703-11711. DOI: 10.1021/acs.analchem.9b02257

513. “Activation of Water by Thorium Cation: A Guided Ion Beam and Quantum Chemical Study” Cox, R. M; Armentrout, P. B. J. Am. Soc. Mass Spectrom.2019, 30, 1835-1849. DOI: 10.1007/s13361-019-02162-1

514. “Infrared Spectroscopy of Gold Carbene Cation (AuCH₂⁺): Covalent or Dative Bonding?” Armentrout, P. B.; Stevenson, B. C.; Yang, F.; Wensink, F. J.; Lushchikova, O. V.; Bakker, J. M. J. Phys. Chem. A.2019, 123, 8932-8941. DOI: 10.1021/acs.jpca.9b08049

515. “Structural Effects of O2′-Ribose Methylation on Protonated Pyrimidine Nucleosides” He, C. C.; Hamlow, L. A.; Zhu, Y.; Nei, Y.-w.; Fan, L.; McNary, C. P.; Maitre, P.; Steinmetz, V.; Schindler, B.; Compagnon, I.; Armentrout, P. B.; Rodgers, M. T. J. Am. Soc. Mass Spectrom.2019, 30, 2318-2334. DOI: 10.1007/s13361-019-02300-9

516. “Zinc and Cadmium Complexation of L-Threonine: An Infrared Multiple Photon Dissociation Spectroscopy and Theoretical Study” Boles, G. C.; Hightower, R. L.; Berden, G.; Oomens, J.; Armentrout, P. B. J. Phys. Chem. B 2019, 123, 9343-9354. DOI: 10.1021/acs.jpcb.9b08184

517. “Thermochemical Studies of Reactions of Re⁺ with SO₂ Using Guided Ion Beam Experiments and Theory” Kim, J.; Cox, R. M; Armentrout, P. B. Phys. Chem. Chem. Phys.2020, 22, 3191 - 3203. (2020 PCCP HOT Article) DOI: 10.1039/C9CP06711F

518. “A Guided Ion Beam and Quantum Chemical Investigation of the Thermochemistry of Thorium Dioxide Cations: Thermodynamic Evidence for Participation of f Orbitals in Bonding” Armentrout, P. B.; Peterson, K. A. Inorg. Chem. 2020, 59, 3118-3131. DOI: 10.1021/acs.inorgchem.9b03488

519. “Cerium cation (Ce⁺) Reactions with H₂, D₂, and HD: CeH⁺ Bond Energy and Mechanistic Insights from Guided Ion Beam and Theoretical Studies” Ghiassee, M.; Armentrout, P.B. J. Phys. Chem. A2020, 124, 2560-2572. DOI: 10.1021/acs.jpca.0c00894

520. “Threshold Collision-Induced Dissociation of Hydrated Thorium Trihydroxide Cation (IV): Experimental and Theoretical Investigation of the Binding Energies for Th(OH)₃⁺(H₂O)_n Complexes (n = 1 – 4)” Kafle, A.; Nwokolo, C.; Sanchez, L.; Armentrout, P. B. J. Phys. Chem. A2020, 124, 3090-3100. DOI: 10.1021/acs.jpca.9b11516

521. “Methane Adducts of Gold Dimer Cations: Thermochemistry and Structure from Collision-induced Dissocation and Association Kinetics” Shuman, N. S.; Ard, S. G.; Sweeny, B. C.; Viggiano, A. A.; Owen, C. J.; Armentrout, P. B. J. Phys. Chem. A2020, 124, 3335-3346. DOI: 10.1021/acs.jpca.0c01217

522. “Zinc and Cadmium Complexation of L-Methionine: An Infrared Multiple Photon Dissociation Spectroscopy and Theoretical Study” Boles, G. C.; Stevenson, B. C.; Hightower, R. L.; Berden, G.; Oomens, J.; Armentrout, P. B. J. Mass Spectrom (Special Issue: AOMSC 2020) accepted for publication. DOI: 10.1002/jms.4580

523. “What is the Bond Dissociation Energy of the Vanadium Hydride Cation?” Armentrout, P. B.; Chang, Y.-C.; Ng, C.-Y. J. Phys. Chem. A2020, 124, 5306-5313. DOI: 10.1021/acs.jpca.0c04517

524. “Water loss from protonated XxxSer and XxxThr dipeptides gives oxazoline – not oxazolone – product ions” Oomens, J.; Kempkes, L. J. M.; Geurts, T. P. J.; van Dijk, L.; Martens, J.; Berden, G.; Armentrout, P. B. J. Am. Soc. Mass Spectrom. submitted for publication.

525. “Guided Ion Beam Tandem Mass Spectrometry and Theoretical Study of SO₂ Activated by Os⁺” Kim, J.S.; Armentrout, P. B. J. Phys. Chem. A124, 6629-6644. DOI: 10.1021/acs.jpca.0c05757

526. “Cis-trans Isomerization is Not Rate Determining for b₂ Ion Structures: A Guided Ion Beam and Computational Study of the Decomposition of H⁺(GlyProAla)” Jones, R. M.; Boles, G. C.; Armentrout, P. B. Int. J. Mass Spectrom. (Hase Memorial), submitted for publication.

527. “Quantum Electronic Control on Chemical Activation of Methane by Collision with Spin-Orbit State Selected Vanadium Cation” Ng, C.-Y.; Xu, Y.; Chang, Y.-C.; Wannenmacher, A.; Parziale, M.; Armentrout, P. B. Phys. Chem. Chem. Phys., submitted for publication.

528. “Praseodymium cation (Pr⁺) reactions with H₂, D₂, and HD: PrH⁺ bond energy and mechanistic insights from guided ion beam and theoretical studies” Ghiassee, M.; Ewigleben, J.; Armentrout, P. B.

You can contact me at armentrout@chem.utah.edu