Veronica Bierbaum
Professor Emeritus
Chemistry
Veronica.Bierbaum@colorado.edu
303-492-7081

Office: Cristol Chemistry 155

Education

笔丑.顿.:听聽University of Pittsburgh, 1974

Areas of Expertise

Physical Chemistry, Reaction Dynamics, Kinetics/Thermochemistry, Atmospheric/Astrochemistry, Trace Gases & Radicals

Gas Phase Ion Chemistry

  • Z.-C. Wang, Y.-K. Li, S.-G. He, and V. M. Bierbaum, 鈥淭he HNO鈹 radical anion: A proposed intermediate in diazeniumdiolate synthesis using nitric oxide and alkoxides鈥, Eur. J. Mass Spectrom., in press 2018. (doi: 10.1177/1469066718799732)
  • Y.-K. Li, Z.-C. Wang, S.-G. He and V. M. Bierbaum, 鈥淩eactions of Sulfur and Oxygen Containing Anions with Nitrogen and Oxygen Atoms: A Comparative Study,鈥 Int. J. Mass Spectrom. 433, 1-6 (2018) ().
  • Z.-C. Wang, Y.-K. Li, S.-G. He, and V. M. Bierbaum, 鈥淩eactivity of Amino Acid Anions with Nitrogen and Oxygen Atoms,鈥 Phys. Chem. Chem. Phys., 20, 4990-4996 (2018) (doi: 10.1039/c7cp07886b)
  • Z.-C. Wang, D. L. Thomsen, E. L. Motell, M. S. Robinson, R. Garrey, V. M. Bierbaum, and C. H. DePuy, 鈥淭he Gas-Phase Methylation of Benzene and Toluene,鈥 Int. J. Mass Spectrom. 429, 6-13 (2018) (doi: 10.1016/j.ijms.2017.03.009)
  • Y.-K. Li, Z.-C. Wang, S.-G. He, and V. M. Bierbaum, 鈥淩eactions of Sulfur- and Oxygen-Containing Anions with Hydrogen Atoms: A Comparative Study,鈥 J. Phys. Chem. Lett., 8, 5725-5729 (2017). (doi: 10.1021/acs.jpclett.7b02641)
  • Z.-C. Wang and V. M. Bierbaum, 鈥淓xperimental and Computational Studies of the Reactions of N and O Atoms with Small Heterocyclic Anions鈥, J. Phys. Chem. A, 121, 3655-3661 (2017) (doi: 10.1021/acs.jpca.7b02903).
  • Z.-C. Wang and V. M. Bierbaum, 鈥淩eactions of Substituted Benzene Anions with N and O Atoms: Chemistry in Titan鈥檚 Upper Atmosphere and the Interstellar Medium,鈥 J. Chem. Phys. 144, 214304 (2016) (doi: 10.1063/1.4952454)
  • C. M. Nichols, Z.-C. Wang, Z. Yang, W. C. Lineberger, and V. M. Bierbaum, 鈥淓xperimental and Theoretical Studies of the Reactivity and Thermochemistry of Dicyanamide: N(CN)2鈭,鈥 J. Phys. Chem. A. 120, 992-999 (2016) (doi: 10.1021/acs.jpca.5b12496)
  • C. A. Cole, Z.-C. Wang, T. P. Snow, and V. M. Bierbaum, 鈥淕as-Phase Chemistry of the Cyanate Ion, OCN鈥,鈥 Astrophys. J., 812, 77 (8pp) (2015).聽 (doi: 10.1088/0004-637X/812/1/77)
  • Z.-C. Wang, C. A. Cole, N. J. Demarais, T. P. Snow, and V. M. Bierbaum, 鈥淩eactions of Azine Anions with Nitrogen and Oxygen Atoms: Implications for Titan and Interstellar Gas-Phase Chemistry,鈥 J. Am. Chem. Soc., 137, 10700-10709 (2015).聽 (doi: 10.1021/jacs.5b06089)
  • Z.-C. Wang and V. M. Bierbaum, 鈥淐omputational Studies of the Gas Phase Reactions of Ethers with Anions: Kinetic Barriers, Isotope Effects, Consecutive Eliminations, and Site Selectivity,鈥 Eur. J. Mass Spectrom., 21, 141-147 (2015). (doi: 10.1255/ejms.1351)
  • N. J. Demarais, Z.-C. Wang, T. P. Snow, and V. M. Bierbaum, 鈥淕as Phase Reactions of CF+ with Molecules of Interstellar Relevance鈥, J. Phys. Chem. A, 119, 4329鈥4335 (2015). (doi: 10.1021/jp507290q)
  • V. M. Bierbaum, 鈥淕o with the Flow: Fifty Years of Innovation and Ion Chemistry using the Flowing Afterglow,鈥 Int. J. Mass Spectrom., 377, 456-466 (2015) (doi:10.1016/j.ijms.2014.07.021)
  • Z.-C. Wang, C. A. Cole, T. P. Snow, and V. M. Bierbaum, 鈥淓xperimental and Computational Studies of the Formation Mechanism of Protonated Interstellar Diazines,鈥 Astrophys. J., 798, 102 (8pp) (2015). (doi:10.1088/0004-637X/798/2/102)
  • C. A. Cole, Z.-C. Wang, T. P. Snow, and V. M. Bierbaum, 鈥淒eprotonated Purine Dissociation: Experiments, Computations, and Astrobiological Implications,鈥 J. Phys. Chem. A, 119, 334-343 (2015). (doi: 10.1021/jp509012s)
  • C. M. Nichols, W. M. Old, W. C. Lineberger, and V. M. Bierbaum, 鈥淕as-Phase Acidities of Nitrated Azoles as Determined by the Extended Kinetic Method and Computations,鈥 J. Phys. Chem. A, 119, 395-402 (2015). (doi: 10.1021/jp5110533)
  • S. Gronert, J. M. Garver, C. M. Nichols, B. B. Worker, and V. M. Bierbaum, 鈥淒ehalogenation of Arenes via SN2 Reactions at Bromine: Competition with Nucleophilic Aromatic Substitution,鈥 J. Org. Chem., 79, 11020-11028 (2014). (doi: 10.1021/jo502039h)
  • C. A. Cole, Z.-C. Wang, T. P. Snow, and V. M. Bierbaum, 鈥淎nionic Derivatives of Uracil: Fragmentation and Reactivity,鈥 Phys. Chem. Chem. Phys., 16, 17835-17844 (2014). (doi: 10.1039/c4cp02277g)
  • N. J. Demarais, Z. Yang, T. P. Snow, and V. M. Bierbaum, 鈥淕as-Phase Reactions of Polycyclic Aromatic Hydrocarbon Cations and their Nitrogen-Containing Analogs with H-atoms,鈥 Astrophys. J., 784, 25 (7pp) (2014). (doi: 10.1088/0004-637X/784/1/25)
  • D. L. Thomsen, C. M. Nichols, J. N. Reece, S. Hammerum, V. M. Bierbaum, 鈥淭he Alpha Effect and Competing Mechanisms: The Gas Phase Reactions of Microsolvated Anions with Methyl Formate,鈥 J. Am. Soc. Mass Spectrom., 25, 159-168 (2014). (doi: 10.1007/s13361-013-0781-z)
  • D. L. Thomsen, J. N. Reece, C. M. Nichols, S. Hammerum, V. M. Bierbaum, 鈥淭he Alpha Effect in Gas-Phase SN2 Reactions of Microsolvated Anions: Methanol as a Solvent,鈥 J. Phys. Chem. A., 118, 8060-8066 (2014). (doi: org/10.1021/jp407698a).
  • C. A. Cole, N. J. Demarais, Z. Yang, T. P. Snow, and V. M. Bierbaum, 鈥淗eterocyclic Anions of Astrobiological Interest,鈥 Astrophys. J., 779, 181 (2013). (doi: 10.1088/0004-637X/779/2/181).
  • D. L. Thomsen, J. N. Reece, C. M. Nichols, S. Hammerum, V. M. Bierbaum, 鈥淚nvestigating the Alpha Effect in Gas-Phase SN2 Reactions of Microsolvated Anions with Methyl Chloride,鈥 J. Am. Chem. Soc., 135, 15508-15514 (2013). (doi: org/10.1021/ja4066943)
  • C. M. Nichols, Z. Yang, V. M. Bierbaum, 鈥淕as-Phase Organic Reactions of the Atomic Oxygen Radical Cation,鈥 Int. J. Mass Spectrom., 353, 1-6 (2013). (doi: org/10.1016/j.ijms.2013.08.005).
  • N. J. Demarais, Z. Yang, T. P. Snow, and V. M. Bierbaum, 鈥淐hemistry of HCNH+: mechanisms, structures, and relevance to Titan鈥檚 atmosphere,鈥 Structural Chem., 24, 1957-1963 (2013). (doi: 10.1007/s11224-013-0275-4).
  • S. Lin, D. Talbi, E. Roueff, E. Herbst, N. Wehres, C. A. Cole, Z. Yang, T. P. Snow, and V. M. Bierbaum, 鈥淐an Interstellar Propene (CH3CHCH2) Be Formed via Gas-phase Reactions?鈥 Astrophys. J., 765, 80, (2013). (doi: 10.1088/0004-637X/765/2/80).
  • N. Eyet, S. M. Villano, and V. M. Bierbaum, 鈥淕as Phase Reactions of Microsolvated Fluoride Ions: An Investigation of Different Solvents,鈥 J. Phys. Chem. A, 117, 1136-1143 (2013). ().
  • C. M. Nichols, Z. Yang, B. B. Worker, D. R. Hager, N. M. M. Nibbering, V. M. Bierbaum, 鈥淕as Phase Reactions of the Atomic Oxygen Radical Cation with Halogenated Compounds,鈥 Phys. Chem. Chem. Phys., 15, 561-567 (2013). (doi: 10.1039/c2cp43183a).
  • J. M. Garver, Z. Yang, N. Wehres, C. M. Nichols, B. B. Worker, and V. M. Bierbaum, 鈥淭he Alpha-Effect in Elimination Reactions and Competing Mechanisms in the Gas Phase,鈥 Int. J. Mass Spectrom. 330鈥332, 182鈥190 (2012). (doi: 10.1016/j.ijms.2012.07.016)
  • C. A. Cole, N. Wehres, Z. Yang, D. L. Thomsen, T. P. Snow, and V. M. Bierbaum, 鈥淎 Gas-Phase Formation Route to Interstellar trans-Methyl Formate,鈥 Astrophys. J. Lett., 754, L5 (2012) (doi: 10.1088/2041-8205/754/1/L5).
  • S. W. Wren, K. M. Vogelhuber, J. M. Garver, S. Kato, L. Sheps, V. M. Bierbaum, W. C. Lineberger, 鈥淐-H Bond Strengths and Acidities in Aromatic Systems: Effects of Nitrogen incorporation in Mono-, Di-, and Triazines,鈥 J. Am. Chem. Soc., 134, 6584-6595 (2012) (doi: 10.1021/ja209566q).
  • V. Wakelam, E. Herbst, J.-C. Loison, I. W. M. Smith, V. Chandrasekaran, B. Pavone, N. G. Adams, M.-C. Bacchus-Montabonel, A. Bergeat, K. B麓eroff, V. M. Bierbaum, M. Chabot, A. Dalgarno, E. F. van Dishoeck, A. Faure, W. D. Geppert, D. Gerlich, D. Galli, E. H麓ebrard, F. Hersant, K. M. Hickson, P. Honvault, S. J. Klippenstein, S. Le Picard, G. Nyman, P. Pernot, S. Schlemmer, F. Selsis, I. R. Sims, D. Talbi, J.Tennyson, J. Troe, R. Wester, L. Wiesenfeld, 鈥淎 Kinetic Database for Astrochemistry (KIDA),鈥 Astrophy. J. Suppl. Ser. 199:21 (2012). (doi: 10.1088/0067-0049/199/1/21)
  • J. M. Garver, Z. Yang, C. M. Nichols, B. B. Worker, S. Gronert, and V. M. Bierbaum, 鈥淩esolving the Alpha-Effect in Gas Phase SN2 Reactions: A Marcus Theory Approach,鈥 Int. J. Mass Spectrom.316-318, 244-250 (2012). (doi: 10.1016/j.ijms.2012.02.014)
  • N. J. Demarais, Z. Yang, O. Martinez Jr., N. Wehres, T. P. Snow, and V. M. Bierbaum, 鈥淕as-Phase Reactions of Polycyclic Aromatic Hydrocarbon Anions with Molecules of Interstellar Relevance,鈥 Astrophys. J., 746:32 (2012). (doi:10.1088/0004-637X/746/1/32)
  • Z. Yang, C. A. Cole, O. Martinez Jr., M. Y. Carpenter, T. P. Snow, and V. M. Bierbaum, 鈥淓xperimental and Theoretical Studies of Reactions between H Atoms and Nitrogen-Containing Carbanions,鈥 Astrophys. J., 739:19 (2011). (doi:10.1088/0004-637X/739/1/19)
  • J. M. Garver, S. Gronert, and V. M. Bierbaum, 鈥淓xperimental Validation of the Alpha Effect in the Gas Phase,鈥 J. Am. Chem. Soc., 133, 13894鈥13897 (2011).
  • J. M. Garver, Z. Yang, S. Kato, S. W. Wren, K. M. Vogelhuber, W. C. Lineberger, and V. M. Bierbaum, 鈥淕as Phase Reactions of 1,3,5-Triazine: Proton Transfer, Hydride Transfer and Anionic Sigma-Adduct Formation,鈥 J. Am. Soc. Mass Spectrom., 22, 1260-1272 (2011).
  • V. M. Bierbaum, V. Le Page, and T. P. Snow, 鈥淧AHs and the Chemistry of the ISM,鈥 in 鈥淧AHs and the Universe: A Symposium to Celebrate the 25th Anniversary of the PAH Hypothesis,鈥 C. Joblin and A. G. G. M. Tielens (eds), EAS Publications Series, 46, 427-440 (2011).
  • J. M. Garver, N. Eyet, S. M. Villano, Z. Yang, and V. M. Bierbaum, 鈥淢echanistic Investigation of SN2 Dominated Gas Phase Alkyl Iodide Reactions,鈥 Int. J. Mass Spectrom., 301, 151-158 (2011).
  • Z. Yang, B. Eichelberger, M. Y. Carpenter, O. Martinez Jr., T. P. Snow, and V. M. Bierbaum, 鈥淓xperimental and Theoretical Studies of Reactions Between H atoms and Carbanions of Interstellar Relevance,鈥 Astrophys. J., 723, 1325-1330 (2010).
  • Z. Yang, T. P. Snow, and V. M. Bierbaum, 鈥淐omputational Studies of Gas Phase Reactions of Carbon Chain Anions with N and O Atoms,鈥 Phys. Chem. Chem. Phys., 12, 13091 鈥 13098 (2010).
  • O. Martinez Jr., Z. Yang, N. J. Demarais, T. P. Snow, and V. M. Bierbaum, 鈥淕as Phase Reactions of Hydride Anion, H鈥,鈥 Astrophys. J., 720, 173-177 (2010).
  • Z. Yang, B. Eichelberger, O. Martinez Jr., M. Stepanovic, T. P. Snow, and V. M. Bierbaum, 鈥淭he Influence of Spin Effects on the Gas Phase Reactions of Carbanions with N and O Atoms,鈥 J. Am. Chem. Soc., 132, 5812-5819 (2010).
  • S. M. Villano, N. Eyet, S. W. Wren, G. B. Ellison, V. M. Bierbaum and W. C. Lineberger, 鈥淧hotoelectron Spectroscopy and Thermochemistry of the Peroxyacetate Anion,鈥 Eur. J. Mass Spectrom., 16, 255-268 (2010).
  • J. M. Garver, Y. Fang, N. Eyet, S. M. Villano, V. M. Bierbaum and K. C. Westaway, 鈥淎 Direct Comparison of Reactivity and Mechanism in the Gas Phase and in Solution,鈥 J. Am. Chem. Soc., 132, 3808-3814 (2010).
  • N. Eyet, A. Midey, V. M. Bierbaum, and A. A. Viggiano, 鈥淎 Survey of the Reactivity of O2 (a1Dg) with Negative Ions,鈥 J. Phys. Chem. A, 114, 1270-1276 (2010).
  • S. M. Villano, N. Eyet, S. W. Wren, G. B. Ellison, V. M. Bierbaum and W. C. Lineberger, 鈥淧hotoelectron Spectroscopy and Thermochemistry of the Peroxyformate Anion,鈥 J. Phys. Chem. A, 114, 191-200 (2010).
  • T. P. Snow, M. Stepanovic, N. B. Betts, B. R. Eichelberger, O. Martinez Jr., and V. M. Bierbaum, 鈥淔ormation of Gas Phase Glycine and Cyanoacetylene via Associative Detachment Reactions,鈥 Astrobiology, 9, 1001-1005 (2009).
  • O. Martinez, Jr., Z. Yang, N. B. Betts, T. P. Snow, and V. M. Bierbaum, 鈥淓xperimental Determination of the Rate Constant for the Associative Detachment Reaction H鈥 + H 庐 H2 + e鈥 at 300 K,鈥 Astrophys. J. Lett., 705, L172-175 (2009).
  • V. Le Page, T. P. Snow, V. M. Bierbaum, 鈥淢olecular Hydrogen Formation Catalyzed by Polycyclic Aromatic Hydrocarbons in the Interstellar Medium,鈥 Astrophys. J., 704, 274-280 (2009).
  • A. A. Viggiano, A. Midey, N. Eyet, V. M. Bierbaum, and J. Troe, 鈥淒issociative Excitation Transfer in the Reaction of O2 (a1Dg) with OH鈥(H2O)1,2 Clusters,鈥 J. Chem. Phys., 131, 094303/1-094303/6 (2009).
  • S. M. Villano, N. Eyet, W. C. Lineberger, and V. M. Bierbaum, 鈥淩eactions of Alpha-Nucleophiles with Alkyl Chlorides:聽 The Competition Between SN2 and E2 Mechanisms and the Gas-Phase Alpha-Effect,鈥 J. Am. Chem. Soc., 131, 8227-8233 (2009).
  • N. Eyet, S. M. Villano, V. M. Bierbaum,聽 鈥淎nchoring the Gas-Phase Acidity Scale: From Formic Acid to Methanethiol,鈥 Int. J. Mass Spectrom., 283, 26-29 (2009).
  • S. M. Villano, N. Eyet, W. C. Lineberger, and V. M. Bierbaum, 鈥淕as-Phase Reactions of Halogenated Radical Carbene Anions with Sulfur and Oxygen Containing Species,鈥 Int. J. Mass Spectrom., 280, 12-18 (2009).
  • O. Martinez Jr., N. B. Betts, S. M. Villano, N. Eyet, T. P. Snow, and V. M. Bierbaum, 鈥淕as Phase Study of C+ Reactions of Interstellar Relevance,鈥 Astrophys. J., 686, 1486-1492 (2008).
  • T. Ichino, S. Kato, S. W. Wren, V. M. Bierbaum, and W. Carl Lineberger. 鈥淚on Chemistry of 1H-1,2,3-Triazole II. Photoelectron Spectrum of the Iminodiazomethyl Anion and Collision Induced Dissociation of the 1,2,3-Triazolide Ion,鈥 J. Phys. Chem. A, 112, 9723-9730 (2008).
  • S. Kato, G. B. Ellison, V. M. Bierbaum, and S. J. Blanksby, 鈥淏ase-Induced Decomposition of Alkyl Hydroperoxides in the Gas Phase.聽 Part 3.聽 Kinetics and Dynamics in the HO鈥 + CH3OOH, C2H5OOH, and tert-C4H9OOH Reactions,鈥 J. Phys. Chem. A, 112, 9516-9525 (2008).
  • N. Eyet, S. M. Villano, and V. M. Bierbaum, 鈥淒euterium Kinetic Isotope Effects in Microsolvated Gas-Phase E2 Reactions: 聽Methanol and Ethanol as Solvents,鈥 J. Am. Soc. Mass Spectrom., 19, 1296-1302 (2008).
  • S. M. Villano, N. Eyet, W. C. Lineberger, and V. M. Bierbaum, 鈥淕as-Phase Carbene Radical Anions: New Mechanistic Insights鈥, J. Am. Chem. Soc., 130, 7214-7215 (2008).
  • T. P. Snow and V. M. Bierbaum, 鈥淚on Chemistry in the Interstellar Medium,鈥 Annual Reviews of Analytical Chemistry, 1, 229-259 (2008).
  • T. Ichino, D. H. Andrews, G. J. Rathbone, F. Misaizu, R. M. D. Calvi, S. W. Wren, S. Kato, V. M. Bierbaum and W. C. Lineberger, 鈥淚on Chemistry of 1H-1,2,3-Triazole,鈥 J. Phys. Chem. B., 112, 545-557 (2008).
  • S. Kato, W. C. Lineberger, and V. M. Bierbaum, 鈥淐ollision Induced Dissociation of Fluoropyridinide Anions,鈥 Int. J. Mass Spectrom., 266, 166-179 (2007).
  • B. Eichelberger, T. P. Snow, C. Barckholtz, and V. M. Bierbaum, 鈥淩eactions of H, N, and O Atoms with Carbon Chain Anions of Interstellar Interest: An Experimental Study,鈥 Astrophys. J., 667, 1283-1289 (2007).
  • S. M. Villano, A. J. Gianola, N. Eyet, T. Ichino, S. Kato, V. M. Bierbaum, and W. C. Lineberger, 鈥淭hermochemical Studies of N-Methylpyrazole and N-Methylimidazole,鈥 J. Phys. Chem. A, 111, 8579-8587 (2007).
  • T. Ichino, A. J. Gianola, S. Kato, V. M. Bierbaum, and W. C. Lineberger, 鈥淪tructure of the Vinyldiazomethyl Anion and Energetic Comparison to the Cyclic Isomers,鈥 J. Phys. Chem. A., 111, 8374-8383 (2007).
  • N. Eyet and V. M. Bierbaum, 鈥淕as-Phase Acidities of Thiocarboxylic Acids,鈥 Int. J. Mass Spectrom., 265, 267-270 (2007).
  • S. J. Blanksby, V. M. Bierbaum, G. B. Ellison, and S. Kato, 鈥淪uperoxide Does React with Peroxides: Direct Observation of the Haber-Weiss Reaction in the Gas Phase,鈥 Angewandte Chemie, 46, 4948-4950 (2007).
  • N. Eyet, S. M. Villano, S. Kato, and V. M. Bierbaum, 鈥淒euterium Kinetic Isotope Effects in Microsolvated Gas-Phase E2 Reactions,鈥 J. Am. Soc. Mass Spectrom., 18, 1046-1051 (2007).
  • X. Zhang, A. T. Maccarone, M. R. Nimlos, S. Kato, V. M. Bierbaum, G. B. Ellison, B. Ruscic, A. C. Simmonett, W. D. Allen, and H. F. Schaefer, 鈥淯nimolecular Thermal Fragmentation of ortho-benzyne,鈥 J. Chem. Phys., 126, 44312 1-20 (2007).
  • N. B. Betts, M. Stepanovic, T. P. Snow, and V. M. Bierbaum, 鈥淕as Phase Study of Coronene Cation Reactivity of Interstellar Relevance,鈥 Astrophys. J. Lett., 651, L129-L131 (2006).
  • A. J. Gianola, T. Ichino, S. Kato, V. M. Bierbaum and W. C. Lineberger, 鈥淭hermochemical Studies of Pyrazolide,鈥 J. Phys. Chem. A, 110, 8457-8466 (2006).
  • S. M. Villano, S. Kato, and V. M. Bierbaum, 鈥淒euterium Kinetic Isotope Effects in Gas-Phase SN2 and E2 Reactions: Comparison of Experiment and Theory,鈥 J. Am. Chem. Soc., 128, 736-737 (2006).
  • R. L. Hoenigman, S. Kato, V. M. Bierbaum and W. T. Borden, 鈥淗eat of Hydrogenation of 1,5-Dehydroquadricyclane.聽 A Computational and Experimental Study of a Highly Pyramidalized Alkene.鈥 J. Am. Chem. Soc., 127, 17772-17777 (2005).
  • A. J. Gianola, T. Ichino, R. L. Hoenigman, S. Kato, V. M. Bierbaum and W. C. Lineberger, 鈥淧hotoelectron Spectra and Ion Chemistry of Imidazolide,鈥 J. Phys. Chem. A, 109, 11504-11514 (2005).
  • R. L. Hoenigman, S. Kato, W. T. Borden, and V. M. Bierbaum, 鈥淎n Experimental and Computational Study of the Ions Formed by the Reaction of Cyclopentanone with O-鈥, Int. J. Mass Spectrom., 241, 149-163 (2005).
  • A. J. Gianola, T. Ichino, R. L. Hoenigman, S. Kato, V. M. Bierbaum and W. C. Lineberger, 鈥淭hermochemistry and electronic structure of the pyrrolyl radical,鈥 J. Phys. Chem. A, 108, 10326-10335 (2004).
  • S. Kato, J. Hacaloglu, G. E. Davico, C. H. DePuy, and V. M. Bierbaum, 鈥淒euterium Kinetic Isotope Effects in the Gas Phase SN2 Reactions of Solvated Fluoride Ions with Methyl Halides,鈥 J. Phys. Chem. A, 108, 9887-9891 (2004).
  • X. Zhang, S. Kato, V. M. Bierbaum, M. R. Nimlos, and G. B. Ellison, 鈥淯se of a Flowing Afterglow-SIFT Apparatus to Study the Reactions of Ions with Organic Radicals,鈥 J. Phys. Chem. A, 108, 9733-9741 (2004).
  • S. Kato, K. E. Carrigan, C. H. DePuy, and V. M. Bierbaum, 鈥淕as Phase Ion-Molecule Reactions of Small Nitroalkanes and their Deprotonated Anions,鈥 European Mass Spectrometry, 10, 225-231 (2004).
  • X. Zhang, V. M. Bierbaum, G. B. Ellison, and S. Kato, 鈥淕as-Phase Reactions of Organic Radicals and Diradicals with Ions,鈥 J. Chem. Phys., 120, 3531-3534 (2004).
  • T. G. Custer, S. Kato, V. M. Bierbaum, C. J. Howard, and G. C. Morrison, 鈥淕as phase kinetics and mechanism of protonated hydrazine reacting with carbonyl compounds,鈥 J. Am. Chem. Soc., 126, 2744-2754 (2004).
  • T. G. Custer, W. P. Wagner, S. Kato, V. M. Bierbaum, and R. Fall, 鈥淧otential of On-Line CIMS for Bioprocess Monitoring,鈥 Biotechnology Progress, 19, 1355-1364 (2003).
  • V. M. Bierbaum, 鈥淚nstrumentation: Flow Tubes,鈥 Encyclopedia of Mass Spectrometry, 1, 98-109 (2003).
  • B. Eichelberger, T. P. Snow, and V. M. Bierbaum, 鈥淐ollision Rate Constants for Polarizable Ions,鈥 J. Am. Soc. Mass Spectrom., 14, 501-505 (2003).
  • S. J. Blanksby, V. M. Bierbaum, G. B. Ellison, and S. Kato, 鈥淔ragmentations of Deprotonated Alkyl Hydroperoxides (ROO鈥) upon Collisional Activation:聽 A Combined Experimental and Computational Study,鈥 Austr. J. Chem., 56, 459-472 (2003).
  • V. Le Page, T. P. Snow and V. M. Bierbaum, 鈥淗ydrogenation and Charge States of PAHs in Diffuse Clouds.聽 II.聽 Results,鈥 Astrophys. J., 584, 316-330 (2003).
  • T. G. Custer, S. Kato, R. Fall, and V. M. Bierbaum, 鈥淣egative-Ion CIMS:聽 Analysis of Volatile Leaf Wound Compounds including HCN,鈥 Int. J. Mass Spectrom., 223/224, 427-446 (2003).
  • T. M. Ramond, S. J. Blanksby, S. Kato, V. M. Bierbaum, G. E. Davico, R. L Schwartz, W. C. Lineberger, and G. B. Ellison, 鈥淗eat of Formation of the Hydroperoxyl Radical HOO via Negative Ion Studies,鈥 J. Phys. Chem. A., 106, 9641-9647 (2002).
  • L. Nugent-Glandorf, M. Scheer, D. A. Samuels, V. M. Bierbaum, and S. R. Leone, 鈥淯ltrafast photodissociation of Br2: Laser-generated high-harmonic soft x-ray probing of the transient photoelectron spectra and ionization cross sections,鈥 J. Chem. Phys., 117, 6108-6116 (2002).
  • S. Kato, G. C. Post, V. M. Bierbaum, and T. H. Koch, 鈥淐hemical Ionization Mass Spectrometric Determination of Acrolein in Human Breast Cancer Cells,鈥 Analytical Biochemistry, 305, 251-259 (2002).
  • L. Nugent-Glandorf, M. Scheer, D. A. Samuels, V. M. Bierbaum, and S. R. Leone, 鈥淎 laser-based instrument for the study of ultrafast chemical dynamics by soft x-ray-probe photoelectron spectroscopy,鈥 Rev. Sci. Instrum., 73, 1875-1886 (2002)
  • S. J. Blanksby, G. B. Ellison, V. M. Bierbaum, and S. Kato, 鈥淒irect evidence for base-mediated decomposition of alkyl hydroperoxides (ROOH) in the gas phase,鈥 J. Am. Chem. Soc., 124, 3196-3197 (2002).
  • L. Nugent-Glandorf, M. Scheer, D. A. Samuels, A. M. Mulhisen, E. R. Grant, X. Yang, V. M. Bierbaum, and S. R. Leone, 鈥淯ltrafast Time-Resolved Soft X-ray Photoelectron Spectroscopy of Dissociating Br2,鈥 Phys. Rev. Lett., 87, 193002 (2001).
  • S. J. Blanksby, T. M. Ramond, G. E. Davico, M. R. Nimlos, S. Kato, V. M. Bierbaum, W. C. Lineberger, G. B. Ellison, and M. Okumura, 鈥淣egative Ion Photoelectron Spectroscopy, Gas Phase Acidity, and Thermochemistry of the Peroxyl Radicals CH3OO and CH3CH2OO,鈥 J. Am. Chem. Soc., 123, 9585-9596 (2001).
  • S. Kato, G. E. Davico, H. S. Lee, C. H. DePuy, and V. M. Bierbaum, 鈥淒euterium Kinetic Isotope Effects in Gas Phase SN2 Reactions,鈥 Int. J. Mass Spectrom., 210/211, 223-229 (2001).
  • S. Kato, P. J. Burke, T. H. Koch, and V. M. Bierbaum, 鈥淔ormaldehyde in Human Cancer Cells:聽 Detection by Preconcentration-Chemical Ionization Mass Spectrometry,鈥 Analytical Chemistry, 73, 2992-2997 (2001).
  • E. B. Anthony, V. M. Bierbaum and S. R. Leone, 鈥淩otational-state and velocity-subgroup dependence of the rotational alignment of N2+ drifted in He,鈥 J. Chem. Phys., 114, 6654-6661 (2001).
  • R. Fall, T. G. Custer, S. Kato, and V. M. Bierbaum, 鈥淣ew Directions:聽 The biogenic acetone-HCN connection,鈥 Atmospheric Environment, 35, 1713-1714 (2001).
  • V. Le Page, T. P. Snow and V. M. Bierbaum, 鈥淗ydrogenation and Charge States of PAHs in Diffuse Clouds.聽 I.聽 Development of a Model,鈥 Ap. J. Supplement, 132, 233-251 (2001).
  • C. Barckholtz, T. P. Snow, and V. M. Bierbaum, 鈥淩eactions of Cn-聽and CnH-聽with Atomic and Molecular Hydrogen,鈥 Astrophys. J. 547, L171-L174 (2001).
  • R. Gareyev, S. Kato, and V. M. Bierbaum, 鈥淕as Phase Reactions of NH2Cl with Anionic Nucleophiles:聽 Nucleophilic Substitution at Neutral Nitrogen,鈥 J. Am. Soc. Mass Spectrom., 12, 139-143 (2001).
  • T. G. Custer, S. Kato, R. Fall and V. M. Bierbaum, 鈥淣egative Ion Mass Spectrometry and the Detection of Carbonyls and HCN from Clover,鈥 Geophys. Res. Lett., 27, 3849-3852 (2000).
  • J. Li, V. M. Bierbaum and S. R. Leone, 鈥淟aser-Induced Fluorescence Study of Two Weak Vibrational Bands of the O2+ A 2Pu - X 2Pg System,鈥 Chem. Phys. Lett., 330, 331-338 (2000).
  • S. Kato, P. J. Burke, D. J. Fenick, D. J. Taatjes, V. M. Bierbaum and T. H. Koch, 鈥淢ass Spectrometric Measurement of Formaldehyde Generated in Breast Cancer Cells upon Treatment with Anthracycline Antitumor Drugs,鈥 Chemical Research in Toxicology, 13, 509-516 (2000).
  • E. B. Anthony, M. J. Bastian, V. M. Bierbaum and S. R. Leone, 鈥淟aser Probing of Rotational-state-dependent Velocity Distributions of N2+(v鈥 = 0,J) Drifted in He,鈥 J. Chem. Phys., 112, 10269-10281 (2000).
  • G. E. Davico and V. M. Bierbaum, 鈥淩eactivity and Secondary Kinetic Isotope Effects in the SN2 Reaction Mechanism.聽 Dioxygen Radical Anion and Related Nucleophiles," J. Am. Chem. Soc., 122, 1740-1748 (2000).
  • S. Kato, T. T. Dang, S. E. Barlow, C. H. DePuy and V. M. Bierbaum, 鈥淕as Phase Association Reactions of Hydroxide, Methoxide, Ethoxide and Their Deuterated Analogs,鈥 Int. J. Mass Spectrom., 195/196, 625-638 (2000).
  • J. Li, V. M. Bierbaum, and S. R. Leone, 鈥淟aser Ionization Time-of-flight Mass Spectrometer Detection of Methyl Radical Produced by Ion-molecule Reactions in a Flowing-Afterglow Apparatus,鈥 Chem. Phys. Lett., 313, 76-84 (1999).
  • V. Le Page, Y. Keheyan, T. P. Snow, and V. M. Bierbaum, 鈥淩eactions of Cations Derived from Naphthalene with Molecules and Atoms of Interstellar Interest,鈥 J. Am. Chem. Soc., 121, 9435-9446 (1999).
  • S. Kato, C. H. DePuy, S. Gronert, and V. M. Bierbaum 鈥淕as Phase Hydrogen/Deuterium Exchange Reactions of Fluorophenyl Anions,鈥 J. Am. Soc. Mass Spectrom., 10, 840-847 (1999).
  • V. Le Page, Y. Keheyan, T. P. Snow, and V. M. Bierbaum, 鈥淕as Phase Chemistry of Pyrene and Related Cations with Molecules and Atoms of Interstellar Interest,鈥 Int. J. Mass Spectrom., 185/186/187, 949-959 (1999).
  • E. P. Clifford, P. G. Wenthold, R. Gareyev, W. C. Lineberger, C. H. DePuy, V. M. Bierbaum, G. B. Ellison, 鈥淧hotoelectron Spectroscopy, Gas Phase Acidity, and Thermochemistry of tert-butyl hydroperoxide:聽 Mechanisms for the rearrangement of peroxyl radicals,鈥 J. Chem. Phys., 109, 10293-10310 (1998).
  • R. Gareyev, T. J. DePuy, V. M. Bierbaum, and C. H. DePuy, 鈥淭he mechanisms of reactions of BH2+, HBOH+, and H2BOH2+ with H2O.聽 An experimental gas phase isotope labeling and theoretical ab initio study,鈥 Int. J. Mass Spectrom., 179/180, 55-60 (1998).
  • E. P. Clifford, P. G. Wenthold, W. C. Lineberger, G. A. Petersson, K. M. Broadus, S. R. Kass, S. Kato, C. H. DePuy, V. M. Bierbaum, and G. B. Ellison, 鈥淧roperties of Diazocarbene [CNN] and the Diazomethyl Radical [HCNN] via Ion Chemistry and Spectroscopy,鈥 J. Phys. Chem. A, 102, 7100-7112 (1998).
  • S. Kato, V. M. Bierbaum, and S. R. Leone, 鈥淢ultiquantum Vibrational Deactivation of N2+(v) by Collisions with N2 and O2 at Thermal Energies,鈥 J. Phys. Chem. A, 102, 6659-6667 (1998).
  • M. J. Frost, S. Kato, V. M. Bierbaum and S. R. Leone, 鈥淩eactions of N2+(v) with CO and NO at thermal energy,鈥 Chemical Physics, 231, 145-153 (1998).
  • S. Kato, R. Gareyev, C. H. DePuy, and V. M. Bierbaum, 鈥淪tructures, Energetics, and Chemical Reactions of Anions Derived from Cyclooctatetraene,鈥 J. Am. Chem. Soc., 120, 5033-5042 (1998).
  • T. P. Snow, V. Le Page, Y. Keheyan, and V. M. Bierbaum, 鈥淭he Interstellar Chemistry of PAH Cations,鈥 Nature, 391, 259-260 (1998).
  • H. S. Lee, V. M. Bierbaum, and C. H. DePuy, 鈥淗ydrogen/Deuterium Exchange in the Reactions of Methyl Cation with Methane,鈥 Int. J. Mass Spectrom. Ion Proc. 167/168, 587-594 (1997).
  • J. A. de Gouw, M. Krishnamurthy, V. M. Bierbaum, and S. R. Leone, 鈥淢easured and Calculated Mobilities of Cluster Ions Drifting in Helium and in Nitrogen,鈥 Int. J. Mass Spectrom. Ion Proc. 167/168, 281-289 (1997).
  • M. Krishnamurthy, V. M. Bierbaum, and S. R. Leone, 鈥淰ibrational state dependence of the N2+(v=0-3) + HCl reaction at thermal energies,鈥 Chem. Phys. Lett., 281, 49-56 (1997).
  • V. Le Page, Y. Keheyan, V. M. Bierbaum, and T. P. Snow, 鈥淐hemical Constraints on Organic Cations in the Interstellar Medium,鈥 J. Am. Chem. Soc., 119, 8373-8374 (1997).
  • S. Kato, H. S. Lee, R. Gareyev, P. G. Wenthold, W. C. Lineberger, C. H. DePuy, and V. M. Bierbaum, 鈥淓xperimental and Computational Studies of the Structures and Energetics of Cyclooctatetraene and Its Derivatives,鈥 J. Am. Chem. Soc., 119, 7863-7864 (1997).
  • C. H. DePuy, V. M. Bierbaum, M. S. Robinson, G. E. Davico, and R. Gareyev, 鈥淭he Gas-Phase Reactions of the Allenyl Anion with CS2, COS and CO2,鈥 Tetrahedron, 53, 9847-9856 (1997).
  • E. B. Anthony, W. Schade, M. J. Bastian, V. M. Bierbaum and S. R. Leone, 鈥淟aser Probing of Velocity-Subgroup Dependent Rotational Alignment of N2+ drifted in He,鈥 J. Chem. Phys., 106, 5413-5422 (1997).
  • M. Krishnamurthy, J. A. de Gouw, L. N. Ding, V. M. Bierbaum and S. R. Leone, 鈥淢obility and formation kinetics of NH4+(NH3)n cluster ions (n=0-3) in helium and helium/ammonia mixtures,鈥 J. Chem. Phys., 106, 530-538 (1997).
  • G. B. Ellison, G. E. Davico, V. M. Bierbaum, and C. H. DePuy, 鈥淭hermochemistry of Benzyl and Allyl Radicals and Ions,鈥 Int. J. Mass Spectrom. Ion Proc., 156, 109-131 (1996).
  • J. A. de Gouw, L. N. Ding, M. Krishnamurthy, H. S. Lee, E. B. Anthony, V. M. Bierbaum and S. R. Leone, 鈥淭he Mobilities of NO+(CH3CN)n Cluster Ions (n=0-3) drifting in Helium and in Helium-Acetonitrile Mixtures,鈥 J. Chem. Phys. 105, 10398-10409 (1996).
  • S. Kato, J. A. de Gouw, C. D. Lin, V. M. Bierbaum and S. R. Leone, 鈥淰ibrational enhancement of the charge transfer rate constant of N2+(v=0-4) with Kr at thermal energies,鈥 J. Chem. Phys. 105, 5455-5466 (1996).
  • M. Krishnamurthy, J. A. de Gouw, V. M. Bierbaum and S. R. Leone, 鈥淢obilities of Aromatic ions drifting in Helium,鈥 J. Phys. Chem. 100, 14908-14913 (1996).
  • H. S. Lee, C. H. DePuy and V. M. Bierbaum, 鈥淩eactivity and Thermochemistry of Quadricyclane in the Gas Phase,鈥 J. Am. Chem. Soc. 118, 5068-5073 (1996).
  • S. Kato, J. A. de Gouw, C. D. Lin, V. M. Bierbaum and S. R. Leone, 鈥淐harge transfer rate constants for N2+(v=0-4) with Ar at thermal energies,鈥 Chem. Phys. Lett. 256, 305-311 (1996).
  • S. Kato, V. M. Bierbaum and S. R. Leone, 鈥淟aser Fluorescence and Mass Spectrometric Measurements of Vibrational Relaxation of N2+(v) with He, Ne, Ar, Kr, and Xe,鈥 Int. J. Mass Spectrom. Ion Proc. 149/150, 469-486 (1995).
  • J. A. de Gouw, L. N. Ding, M. J. Frost, S. Kato, V. M. Bierbaum and S. R. Leone, 鈥淰ibrational Energy Dependence of the Reaction N2+(v) + H2 庐 N2H+ + H at Thermal Energies,鈥 Chem. Phys. Lett. 240, 362-368 (1995).
  • M. S. Robinson, M. L. Polak, V. M. Bierbaum, C. H. DePuy and W. C. Lineberger, 鈥淓xperimental Studies of Allene, Methylacetylene, and the Propargyl Radical:聽 Bond Dissociation Energies, Gas-phase Acidities, and Ion-Molecule Chemistry,鈥 J. Am. Chem. Soc. 117, 6766-6778 (1995).
  • G. E. Davico, V. M. Bierbaum, C. H. DePuy, G. B. Ellison, and R. R. Squires, 鈥淭he C-H Bond Energy of Benzene,鈥 J. Am. Chem. Soc. 117, 2590-2599 (1995).
  • M. S. Robinson, G. E. Davico, V. M. Bierbaum and C. H. DePuy, 鈥淭he Gas Phase Ion/molecule Chemistry of the Carbon-13 Labeled Ketenyl and Methyl Ketenyl Anions with CS2, COS and CO2,鈥 Int. J. Mass Spectrom. Ion Proc. 137, 107-119 (1994).
  • H. S. Lee and V. M. Bierbaum, 鈥淕as Phase Reactions of the Sulfur-34 Anion with CS2, OCS and H2S as a Function of Kinetic Energy,鈥 J. Chem. Phys. 101, 9513-9518 (1994).
  • S. Kato, M. J. Frost, V. M. Bierbaum and S. R. Leone, 鈥淰ibrational Specificity for Charge Transfer versus Deactivation in N2+(v=0,1,2) + Ar and O2 Reactions,鈥 Can. J. Chem. 72, 625-636 (1994).
  • M. J. Frost, S. Kato, V. M. Bierbaum and S. R. Leone, 鈥淜inetics and Dynamics of Vibrationally State Resolved Ion-molecule Reactions: 14N2+(v=1 and 2) and 15N2+(v=0, 1 and 2) with 14N2,鈥 J. Chem. Phys. 100, 6359-6367 (1994).
  • R. A. J. O鈥橦air, G. E. Davico, J. Hacaloglu, T. T. Dang, C. H. DePuy and V. M. Bierbaum, 鈥淢easurements of Solvent and Secondary Kinetic Isotope Effects for the Gas Phase SN2 Reactions of Fluoride with Methyl Halides,鈥 J. Am. Chem. Soc. 116, 3609-3610 (1994).
  • S. Kato, M. J. Frost, V. M. Bierbaum and S. R. Leone, 鈥淎 Selected Ion Flow Tube-Laser Induced Fluorescence Instrument for Vibrationally State-Specific Ion-Molecule Reactions,鈥 Rev. Sci. Instrum. 64, 2808-2820 (1993).
  • R. A. J. O鈥橦air, C. H. DePuy and V. M. Bierbaum, 鈥淕as Phase Chemistry and Thermochemistry of the Hydroxysulfide Anion, HOS-聽,鈥 J. Phys. Chem. 97, 7955-7961 (1993).
  • M. J. Bastian, C. P. Lauenstein, V. M. Bierbaum and S. R Leone, 鈥淪ingle Frequency Laser Probing of Velocity Component Correlations and Transport Properties of Ba+ Drifting in Ar,鈥 J. Chem. Phys. 98, 9496-9512 (1993).
  • M. J. Frost, S. Kato, V. M. Bierbaum and S. R. Leone, 鈥淒irect Observation of the Simultaneous Transfer of Vibrational Energy and Charge in the 15N2+(v) + 14N2 Reaction,鈥 J. Chem. Phys. 98, 5993-5995 (1993).
  • T. T. Dang, E. L. Motell, M. J. Travers, E. P. Clifford, G. B. Ellison, C. H. DePuy and V. M. Bierbaum, 鈥淓xperimental and Computational Studies of Deuterated Ethanols:聽 Gas Phase Acidities, Electron Affinities and Bond Dissociation Energies,鈥 Int. J. Mass Spectrom. Ion Proc. 123, 171-185 (1993).
  • R. J. Schmitt, M. Krempp and V. M. Bierbaum, 鈥淕as Phase Chemistry of Dinitramide and Nitroacetylide Ions,鈥 Int. J. Mass Spectrom. Ion Proc. 117, 621-632 (1992).
  • K. Knutsen, V. M. Bierbaum and S. R. Leone, 鈥淭hermal Energy Reactions of OH鈹 聽+ Cl2, Br2:聽 Rate Coefficients, Product Branching Fractions and OH Product Vibrational Populations,鈥 Int. J. Mass Spectrom. Ion Proc. 117, 537-555 (1992).
  • T. T. Dang and V. M. Bierbaum, 鈥淪tudies of the Gas Phase Reactions of Protonated Methanol with Methanol using Oxygen-18 and Deuterium Labeling,鈥 Int. J. Mass Spectrom. Ion Proc. 117, 65-82 (1992).
  • S. D. Prodnuk, S. Gronert, V. M. Bierbaum and C. H. DePuy, 鈥淕as-phase Reactions of C3Hn+ Ions,鈥 Org. Mass Spectrom. 27, 416-422 (1992).
  • K. Knutsen, V. M. Bierbaum and S. R. Leone, 鈥淓ffect of Enhanced Collision Energy on Product Vibrational Excitation for the Proton Transfer Reaction:聽 O鈹 + HF 庐 F鈹 + OH(v=0,1),鈥 J. Chem. Phys. 96, 298-306 (1992).
  • J. M. Van Doren, S. E. Barlow, C. H. DePuy and V. M. Bierbaum, 鈥淓xchange Reactions of 18O鈹 with some Di- and Tri-atomic Molecules,鈥 Int. J. Mass Spectrom. Ion Proc. 109, 305-325 (1991).
  • C. P. Lauenstein, M. J. Bastian, V. M. Bierbaum, S. M. Penn and S. R. Leone, 鈥淟aser-Induced Fluorescence Measurements of Rotationally Resolved Velocity Distributions for CO+ Drifted in He,鈥 J. Chem. Phys. 94, 7810-7818 (1991).
  • S. Gronert, C. H. DePuy and V. M. Bierbaum, 鈥淒euterium Isotope Effects in Gas Phase Reactions of Alkyl Halides: Distinguishing E2 and SN2 Pathways,鈥 J. Am. Chem. Soc. 113, 4009-4010 (1991).
  • S. D. Prodnuk, C. H. DePuy and V. M. Bierbaum, 鈥淭he Heats of Formation of Cyclic and Linear C3H2+,鈥 Int. J. Mass Spectrom. Ion Proc. 100, 693-699 (1990).
  • C. H. DePuy, S. Gronert, A. Mullin and V. M. Bierbaum, 鈥淕as-Phase SN2 and E2 Reactions of Alkyl Halides,鈥 J. Am. Chem. Soc. 112, 8650-8655 (1990).
  • S. M. Penn, J. P. M. Beijers, R. A. Dressler, V. M. Bierbaum and S. R. Leone, 鈥淟aser-induced Fluorescence Measurements of Drift-Velocity Distributions for Ba+ in Ar: Moment Analysis and a Direct Measure of Skewness,鈥 J. Chem. Phys. 93, 5118-5127 (1990).
  • S. E. Barlow, T. T. Dang and V. M. Bierbaum, 鈥淗ydrogen-Deuterium Exchange Reactions of Methoxide-Methanol Clusters,鈥 J. Am. Chem. Soc. 112, 6832-6838 (1990).
  • K. M. Ervin, S. Gronert, S. E. Barlow, M. K. Gilles, A. G. Harrison, V. M. Bierbaum, C. H. DePuy, W. C. Lineberger and G. B. Ellison, 鈥淏ond Strengths of Ethylene and Acetylene鈥, J. Am. Chem. Soc. 112, 5750-5759 (1990).
  • D. M. Golden, V. M. Bierbaum and C. J. Howard, 鈥淐omments on 鈥楻eevaluation of the Bond-Dissociation Energies (DHDBE) for H鈥擮H, H鈥擮OH, H鈥擮鈹, H鈥擮, H鈥擮O鈹, and H鈥擮O,鈥 J. Phys. Chem. 94, 5413-5415 (1990).
  • S. E. Barlow and V. M. Bierbaum, 鈥淩eactions of O鈹 + N2O at 300K: The Totally Labeled Experiments鈥, J. Chem. Phys. 92, 3442-3447 (1990).
  • R. A. J. O鈥橦air, K. E. Carrigan, V. M. Bierbaum, C. H. DePuy and J. H. Bowie, 鈥淕as Phase Chemistry of Nitrogen Containing Negative Ions.聽 Deprotonated Nitromethane, Acetone Oxime, and Acetone Oxime O-Methyl Ether,鈥 Int. J. Mass Spectrom. Ion Proc. 90, 295-300 (1989).
  • C. H. DePuy, J. M. Van Doren, S. Gronert, S. R. Kass, E. L. Motell, G. B. Ellison and V. M. Bierbaum, 鈥淕as Phase Negative-Ion Chemistry of Diazomethane,鈥 J. Org. Chem. 54, 1846-1850 (1989).
  • C. H. DePuy, S. Gronert, S. E. Barlow, V. M. Bierbaum and R. Damrauer, 鈥淭he Gas Phase Acidities of the Alkanes,鈥 J. Am. Chem. Soc. 111, 1968-1973 (1989).
  • J. M. Van Doren, C. H. DePuy and V. M. Bierbaum, 鈥淕as Phase Isotope Exchange Reactions with Chloride Ion,鈥 J. Phys. Chem. 93, 1130-1134 (1989).
  • R. A. Dressler, J. P. M. Beijers, H. Meyer, S. M. Penn, V. M. Bierbaum and S. R. Leone, 鈥淟aser Probing of Ion Velocity Distributions in聽 Drift Fields: Parallel and Perpendicular Temperatures and Mobility for Ba+ in He,鈥 J. Chem. Phys. 89, 4707-4715 (1988).
  • S. E. Barlow, J. M. Van Doren and V. M. Bierbaum, 鈥淭he Gas Phase Displacement Reaction of Chloride Ion with Methyl Chloride as a Function of Kinetic Energy,鈥 J. Am. Chem. Soc. 110, 7240-7242 (1988).
  • K. Knutsen, V. M. Bierbaum and S. R. Leone, 鈥淩emeasurement of the Rate Constant and Branching Ratio for the N2+ + O Reaction,鈥 Planet. Space Sci. 36, 307-310 (1988).
  • S. R. Leone and V. M. Bierbaum, 鈥淟aser Probing of Product State Distributions in Thermal-energy Ion-Molecule Reactions,鈥 Faraday Discuss. Chem. Soc. 84, 253-263 (1987).
  • C. H. DePuy and V. M. Bierbaum, 鈥淚on-Molecule Reactions in a Flowing Afterglow and SIFT,鈥 Spectros. Int. J. 5, 95-100 (1987).
  • J. M. Van Doren, S. E. Barlow, C. H. DePuy and V. M. Bierbaum, 鈥淭he Tandem Flowing Afterglow SIFT-Drift,鈥 Int. J. Mass Spectrom. Ion Proc. 81, 85-100 (1987).
  • R. A. Dressler, H. Meyer, A. O. Langford, V. M. Bierbaum and S. R. Leone, 鈥淒irect Observation of Ba+ Velocity Distributions in a Drift Tube using Single-Frequency Laser-Induced Fluorescense,鈥 J. Chem. Phys. 87, 5578-5579 (1987).
  • J. Filley, C. H. DePuy and V. M. Bierbaum, 鈥淕as Phase Negative Ion Chemistry of Methyl Isocyanide,鈥 J. Am. Chem. Soc. 109, 5992-5995 (1987).
  • C. H. DePuy, S. E. Barlow, J. M. Van Doren, C. R. Roberts and V. M. Bierbaum, 鈥淕as Phase Chemistry of CH2鈹,鈥 J. Am. Chem. Soc. 109, 4414-4415 (1987).
  • J. M. Van Doren, S. E. Barlow, C. H. DePuy and V. M. Bierbaum, 鈥淭andem Flowing Afterglow-Selected Ion Flow Tube and Its Application to the Thermal Energy Reactions of 18O鈹,鈥 J. Am. Chem. Soc. 109, 4412-4414 (1987).
  • C. H. DePuy and V. M. Bierbaum, 鈥淧roton Transfer Reactions of Anions,鈥 in 鈥淪tructure/Reactivity and Thermochemistry of Ions,鈥 P. Ausloos and S. G. Lias (eds.); D. Reidel, Dordrecht, Holland; 293-303 (1987).
  • C. H. DePuy and V. M. Bierbaum, 鈥淔ormation of Anions in the Gas Phase鈥 in 鈥淪tructure/Reactivity and Thermochemistry of Ions,鈥 P. Ausloos and S. G. Lias (eds.); D. Reidel: Dordrecht, Holland; 279-291 (1987).
  • V. M. Bierbaum and S. R. Leone, 鈥淥ptical Studies of Product State Distributions in Thermal Energy Ion-Molecule Reactions鈥 in 鈥淪tructure/Reactivity and Thermochemistry of Ions,鈥 P. Ausloos and S. G. Lias (eds.); D. Reidel: Dordrecht, Holland; 23-55 (1987).
  • S. E. Barlow, J. M. Van Doren, C. H. DePuy, V. M. Bierbaum, I. Dotan, E. E. Ferguson, D. Smith, N. G. Adams, B. R. Rowe, J. B. Marquette, G. Dupeyrat and M. Durup-Ferguson, 鈥淪tudies of the Reaction of O2+听with Deuterated Methanes,鈥 J. Chem. Phys. 85, 3851-3859 (1986).
  • J. H. Bowie, C. H. DePuy, S. A. Sullivan and V. M. Bierbaum, 鈥淕as Phase Reactions of the Hydroperoxide and Peroxyformate Anions,鈥 Can. J. Chem. 64, 1046-1050 (1986).
  • J. M. Van Doren, S. E. Barlow, C. H. DePuy, V. M. Bierbaum, I. Dotan and E. E. Ferguson,鈥 Chemistry and Structure of the CH3O2+ Product of the O2+ + CH4 Reaction,鈥 J. Phys. Chem. 90, 2772-2777 (1986).
  • A. O. Langford, V. M. Bierbaum and S. R. Leone, 鈥淏ranching Ratios for Electronically Excited Oxygen Atoms Formed in the Reaction of N+ with O2 at 300 K,鈥 J. Chem. Phys. 84, 2158-2166 (1986).
  • J. J. Grabowski, C. H. DePuy, J. M. Van Doren and V. M. Bierbaum, 鈥淕as Phase Hydrogen-Deuterium Exchange Reactions of Anions: Kinetics and Detailed Mechanism,鈥 J. Am. Chem. Soc. 107, 7384-7389 (1985).
  • A. O. Langford, V. M. Bierbaum and S. R. Leone, 鈥淎uroral Implications of Recent Measurements on O(1S) and O(1D) Formation in the Reaction of N+ with O2,鈥 Planet. Space Sci. 33, 1225 (1985).
  • A. O. Langford, V. M. Bierbaum and S. R. Leone, 鈥淔lowing Afterglow Infrared Chemiluminescence Studies of Vibrational Energy Disposal in the Ion-Molecule Reactions F鈹 + HBr, DBr 庐 HF, DF + Br鈹,鈥 J. Chem. Phys. 83, 3913-3918 (1985).
  • C. E. Hamilton, V. M. Bierbaum and S. R. Leone, 鈥淧roduct Vibrational State Distributions of Thermal Energy Charge Transfer Reactions: Ar+ + CO 庐 CO+(v=0-6) + Ar,鈥 J. Chem. Phys. 83, 2284-2292 (1985).
  • C. E. Hamilton, V. M. Bierbaum and S. R. Leone, 鈥淧roduct Vibrational State Distributions of Thermal Energy Charge Transfer Reactions: N+ + CO 庐 CO+(v=0-2) + N,鈥 J. Chem. Phys. 83, 601-610 (1985).
  • C. H. DePuy, V. M. Bierbaum, R. Damrauer, and J. A. Soderquist, 鈥淕as Phase Reactions of the Acetyl Anion,鈥 J. Am. Chem. Soc. 107, 3385-3386 (1985).
  • V. M. Bierbaum, J. Filley, C. H. DePuy, M. F. Jarrold and M. T. Bowers, 鈥淜inetic Isotope Effect in Gas Phase Base-Induced Elimination Reactions,鈥 J. Am. Chem. Soc. 107, 2818-2820 (1985).
  • C. H. DePuy, J. J. Grabowski, V. M. Bierbaum, S. Ingemann, and N. M. M. Nibbering, 鈥淕as Phase Reactions of Anions with Methyl Formate and N,N-Dimethylformamide,鈥 J. Am. Chem. Soc. 107, 1093-1098 (1985).
  • D. R. Anderson, C. H. DePuy, J. Filley and V. M. Bierbaum, 鈥淕as Phase Chemistry of Trimethyl Phosphite,鈥 J. Am. Chem. Soc. 106, 6513-6517 (1984).
  • C. H. DePuy, V. M. Bierbaum, and R. Damrauer, 鈥淩elative Gas Phase Acidities of the Alkanes,鈥 J. Am. Chem. Soc. 106, 4051-4053 (1984).
  • V. M. Bierbaum, G. B. Ellison and S. R. Leone, 鈥淔lowing Afterglow Studies of Ion Reaction Dynamics Using Infrared Chemiluminescence and Laser Induced Fluorescence,鈥 In Gas Phase Ion Chemistry, (M. T. Bowers, ed.), Vol. 3, pp 1-39, Academic Press, New York, 1984.
  • V. M. Bierbaum, J. J. Grabowski and C. H. DePuy, 鈥淕as Phase Synthesis and Reactions of Nitrogen- and Sulfur-Containing Anions鈥, J. Phys. Chem. 88, 1389-1393 (1984).
  • C. E. Hamilton, V. M. Bierbaum, and S. R. Leone, 鈥淰ibrational Energy Disposal in Polyatomic Ion-Molecule Reactions:聽 SF6鈹 + H,D 庐 SF5鈹 + HF(v), DF(v),鈥 J. Chem. Phys. 80, 1831-1838 (1984).
  • D. M. Walba, C. H. DePuy, J. J. Grabowski, V. M. Bierbaum, 鈥淥xidation of Alkenes by d潞 Transition Metal Oxo Species: A Mechanism for the Oxidation of Ethylene by a Dioxo chromium (VI) Complex in the Gas Phase,鈥 Organometallics 3, 498-499 (1984).
  • J. J. Grabowski, J. M. Van Doren, C. H. DePuy and V. M. Bierbaum, 鈥淔lowing Afterglow Studies of the Electron Affinity of SO2,鈥 J. Chem. Phys. 80, 575-577 (1984).
  • J. M. Oakes, M. E. Jones, V. M. Bierbaum and G. B. Ellison, 鈥淧hotoelectron Spectroscopy of CCO鈹 and HCCO鈹,鈥 J. Phys. Chem. 87, 4810-4815 (1983).
  • M. A. Duncan, V. M. Bierbaum, G. B. Ellison and S. R. Leone, 鈥淟aser-induced Fluorescence Studies of Ion Collisional Excitation in a Drift Field: Rotational Excitation of N2+ in Helium,鈥 J. Chem. Phys. 79, 5448-5456 (1983).
  • D. R. Anderson, V. M. Bierbaum, C. H. DePuy and J. J. Grabowski, 鈥淔lowing Afterglow Studies of Organic Positive Ions Generated by Penning Ionization Using Metastable Argon Atoms,鈥 Int. J. Mass Spectrom. Ion Phys. 52, 65-94 (1983).
  • R. R. Squires, V. M. Bierbaum, J. J. Grabowski and C. H. DePuy, 鈥淢ultiple Proton Transfers Within Long-Lived Ion-Molecule Complexes,鈥 J. Am. Chem. Soc. 105, 5185-5192 (1983).
  • D. R. Anderson, V. M. Bierbaum and C. H. DePuy, 鈥淕as Phase Chemistry of H2P鈹,鈥 J. Am. Chem. Soc. 105, 4244-4248 (1983).
  • J. J. Grabowski, C. H. DePuy and V. M. Bierbaum, 鈥淕as Phase Hydrogen-Deuterium Exchange Reactions of HO鈹 and DO鈹 with Weakly Acidic Neutrals,鈥 J. Am. Chem. Soc. 105, 2565-2571 (1983).
  • C. H. DePuy, E. W. Della, J. Filley, J. J. Grabowski and V. M. Bierbaum, 鈥淎bsence of an Alpha-Effect in the Gas-Phase Nucleophilic Reactions of HOO鈹,鈥 J. Am. Chem. Soc. 105, 2481-2482 (1983).
  • M. A. Smith, V. M. Bierbaum and S. R. Leone, 鈥淚nfrared Chemiluminescence from Vibrationally Excited NO+: Product Branching in the N+ + O2 Ion-Molecule Reaction,鈥 Chem. Phys. Lett. 94, 398-403 (1983).
  • C. E. Hamilton, M. A. Duncan, T. S. Zwier, J. C. Weisshaar, G. B. Ellison, V. M. Bierbaum and S. R. Leone, 鈥淧roduct Vibrational Analysis of Ion-Molecule Reactions by Laser-Induced Fluorescence in a Flowing Afterglow: O鈹 + HF 庐 OH(v=0,1) + F鈹,鈥 Chem. Phys. Lett. 94, 4-9 (1983).
  • C. H. DePuy, E. C. Beedle and V. M. Bierbaum, 鈥淭he Reactions of Cyclic Ethers with Amide and Hydroxide Ions in the Gas Phase,鈥 J. Am. Chem. Soc. 104, 6483-6488 (1982).
  • C. H. DePuy, J. J. Grabowski and V. M. Bierbaum, 鈥淐hemical Reactions of Anions in the Gas Phase,鈥 Science 218, 955-960 (1982).
  • R. Damrauer, C. H. DePuy and V. M. Bierbaum, 鈥淭he Reactions of Trimethylchlorosilane with Various Nucleophiles in the Gas Phase Using the Flowing Afterglow Technique,鈥 Organometallics 1, 1553-1554 (1982).
  • C. H. DePuy and V. M. Bierbaum, 鈥淕as-Phase Sulfur Anions: Synthesis and Reactions of H2NS鈹 and Related Ions鈥, Tetrahedron Lett. 22, 5129-5130 (1981).
  • G. K. King, M. M. Maricq, V. M. Bierbaum and C. H. DePuy, 鈥淕as Phase Reactions of Negative Ions with Alkyl Nitrites,鈥 J. Am. Chem. Soc. 103, 7133-7140 (1981).
  • V. M. Bierbaum, R. J. Schmitt, C. H. DePuy, R. D. Mead, P. A. Schulz and W. C. Lineberger, 鈥淓xperimental Measurement of the Electron Affinity of the Hydroperoxy Radical鈥, J. Am. Chem. Soc. 103, 6262-6263 (1981).
  • C. H. DePuy and V. M. Bierbaum, 鈥淕as Phase Elimination Reactions of Ethers Induced by Amide and Hydroxide Ions,鈥 J. Am. Chem. Soc. 103, 5034-5038 (1981).
  • R. R. Squires, C. H. DePuy and V. M. Bierbaum, 鈥淕as Phase Hydrogen-Deuterium Exchange Reactions in Carbanions: Exchange of Vinyl and Aryl Protons by D2O鈥, J. Am. Chem. Soc. 103, 4256-4258 (1981).
  • C. H. DePuy and V. M. Bierbaum, 鈥淕as Phase Reactions of Organic Anions as Studied by the Flowing Afterglow Technique,鈥 Accts. Chem. Res. 14, 146-153 (1981).
  • V. M. Bierbaum, R. J. Schmitt and C. H. DePuy, 鈥淩eactions of Carbanions with Triplet and Singlet Molecular Oxygen,鈥 Env. Health Persp. 36, 119-124 (1980).
  • C. H. DePuy, V. M. Bierbaum, L. A. Flippin, J. J. Grabowski, G. K. King, R. J. Schmitt and S. A. Sullivan, 鈥淕as-Phase Reactions of Anions with Substituted Silanes,鈥 J. Am. Chem. Soc. 102, 5012-5015 (1980).
  • T. S. Zwier, V. M. Bierbaum, G. B. Ellison and S. R. Leone, 鈥淰ibrational Product State Distributions of Ion-Molecule Reactions by Infrared Chemiluminescence: Cl鈹 + HBr, HI 庐 HCl(v) + Br鈹, I鈹,鈥 J. Chem. Phys. 72, 5426-5436 (1980).
  • T. S. Zwier, M. M. Maricq, C. J. S. M. Simpson, V. M. Bierbaum, G. B. Ellison and S. R. Leone, 鈥淒irect Detection of the Product Vibrational State Distribution in the Associative Detachment Reaction Cl鈹 + H 庐 HCl(v) + e,鈥 Phys. Rev. Lett. 44, 1050-1053 (1980).
  • R. J. Schmitt, V. M. Bierbaum and C. H. DePuy, 鈥淕as-Phase Reactions of Carbanions with Triplet and Singlet Molecular Oxygen,鈥 J. Am. Chem. Soc. 101, 6443-6445 (1979).
  • C. H. DePuy, V. M. Bierbaum, L. A. Flippin, J. J. Grabowski, G. K. King and R. J. Schmitt, 鈥淕eneration of Specific Isomeric Carbanions in the Gas Phase,鈥 J. Am. Chem. Soc. 101, 6443-6443 (1979).
  • C. H. DePuy, V. M. Bierbaum, G. K. King and R. H. Shapiro, 鈥淗ydrogen-Deuterium Exchange Reactions of Carbanions with Deuterated Alcohols in the Gas Phase,鈥 J. Am. Chem. Soc. 100, 2921-2922 (1978).
  • C. H. DePuy, V. M. Bierbaum, R. J. Schmitt and R. H. Shapiro, 鈥淕as Phase Oxidation and Reduction Reactions with C6H7鈹, HNO鈹 and HO2鈹,鈥 J. Am. Chem. Soc. 100, 2920-2921 (1978).
  • J. H. Stewart, R. H. Shapiro, C. H. DePuy and V. M. Bierbaum, 鈥淗ydrogen-Deuterium Exchange Reactions of Carbanions with D2O in the Gas Phase,鈥 J. Am. Chem. Soc. 99, 7650-7653 (1977).
  • V. M. Bierbaum, G. B. Ellison, J. H. Futrell and S. R. Leone, 鈥淰ibrational Chemiluminescence from ion-molecule reactions: O鈹 + CO 庐 CO2 + e鈹,鈥 J. Chem. Phys. 67, 2375-2376 (1977).
  • V. M. Bierbaum, C. H. DePuy and R. H. Shapiro, 鈥淕as Phase Reactions of Anions with Nitrous Oxide and Carbon Dioxide,鈥 J. Am. Chem. Soc. 99, 5800-5802 (1977).
  • V. M. Bierbaum, C. H. DePuy, R. H. Shapiro and J. H. Stewart, 鈥淔lowing Afterglow Studies of the Reactions of Hydroxide, Amide and Methoxide Ions with Ethylene Oxide and Propylene Oxide,鈥 J. Am. Chem. Soc. 98, 4229-4235 (1976).
  • V. M. Bierbaum, M. F. Golde and F. Kaufman, 鈥淔lowing Afterglow Studies of Hydronium Ion Clustering Including Diffusion Effects,鈥 J. Chem. Phys. 65, 2715-2724 (1976).
  • V. M. Bierbaum and F. Kaufman, 鈥淜inetics of the Reactions of N2H+, N3+ and N4+ with H2O in the Gas Phase,鈥 J. Chem. Phys. 61, 3804-3809 (1974).
  • C. J. Howard, V. M. Bierbaum, H. W. Rundle and F. Kaufman, 鈥淜inetics and Mechanism of the Formation of Water Cluster Ions from O2+ and H2O,鈥 J. Chem. Phys. 57, 3491-3497 (1972).

National Organizations:
+听American Society for Mass Spectrometry (Secretary, Vice-President, President, and Past-President).
+听Council of Scientific Society Presidents.
+听American Chemical Society.
+听Phi Beta Kappa

Science Education:
+听PI for a three year, $1.5M NSF Grant "Partners in Science Education."
+听Member of the Science Education Initiative in the Department of Chemistry and Biochemistry.
+听Residence Life Academic Teaching Awards

Outreach Activities:
+听Member of the Scientific Review Committee of the Boulder Valley School District.
+听Member of the Steering Committee of the International Baccalaureate Program, Fairview High School, Boulder.
+听Faculty Presenter in the CU Wizards Program

Editorial Activities:
+听Associate Editor,聽Journal of the American Society for Mass Spectrometry.
+听Guest Editor,聽Chemical Reviews聽(Thematic Issue on Mass Spectrometry).
+听Member, Editorial Board,聽The Encyclopedia of Mass Spectrometry.
+听Member, Editorial Board,聽The International Journal of Mass Spectrometry.

Broadening the Participation of Underrepresented Groups:
+听Mentor for Summer Multicultural Access to Research Training.
+听PI of a grant from President's Fund to Support the Recruitment and Retention of Minority and Women Faculty