Geng, Wen-Chao; Zhang, Dongmei et al. (2020) Host-Guest Complexation of Amphiphilic Molecules at the Air-Water Interface Prevents Oxidation by Hydroxyl Radicals and Singlet Oxygen Angewandte Chemie International Edition; Vol. 59; No. 31;

Fabijanczuk, Kimberly; Gaspar, Kaylee et al. (2019) Resin- and Magnetic Nanoparticle-Based Free Radical Probes for Glycan Capture, Isolation, and Structural Characterization Analytical Chemistry; Vol. 91; No. 24;

Mu, Chaonan; Wang, Jie et al. (2019) Mass Spectrometric Study of Acoustically Levitated Droplet Illuminates Molecular-Level Mechanism of Photodynamic Therapy for Cancer involving Lipid Oxidation Angewandte Chemie International Edition; Vol. 58; No. 24;

Armentrout, Peter B.; Baer, Thomas et al. (2019) Robert C. Dunbar (1943–2017) European Journal of Mass Spectrometry; Vol. 25; No. 1;

Zhang, Xinxing; Barraza, Kevin M. et al. (2018) Subtle Changes in Lipid Environment Have Profound Effects on Membrane Oxidation Chemistry Journal of the American Chemical Society; Vol. 140; No. 50;

Huang, Yuanlong; Barraza, Kevin M. et al. (2018) Probing the OH Oxidation of Pinonic Acid at the Air-Water Interface Using Field-Induced Droplet Ionization Mass Spectrometry (FIDI-MS) Journal of Physical Chemistry A; Vol. 122; No. 31;

Zhang, Xinxing; Barraza, Kevin M. et al. (2018) Cholesterol provides nonsacrificial protection of membrane lipids from chemical damage at air–water interface Proceedings of the National Academy of Sciences of the United States of America; Vol. 115; No. 13;

Upton, Kathleen T.; Schilling, Katherine A. et al. (2017) Easily fabricated ion source for characterizing mixtures of organic compounds by direct analysis in real time mass spectrometry Analytical Methods; Vol. 9; No. 34;

Zhang, Xinxing; Barraza, Kevin M. et al. (2017) Time Resolved Study of Hydroxyl Radical Oxidation of Oleic Acid at the Air-Water Interface Chemical Physics Letters; Vol. 683;

Thomas, Daniel A.; Coggon, Matthew M. et al. (2016) Real-Time Studies of Iron Oxalate-Mediated Oxidation of Glycolaldehyde as a Model for Photochemical Aging of Aqueous Tropospheric Aerosols Environmental Science and Technology; Vol. 50; No. 22;

Desai, Nikunj; Thomas, Daniel A. et al. (2016) Eradicating mass spectrometric glycan rearrangement by utilizing free radicals Chemical Science; Vol. 7; No. 8;

Sohn, Chang Ho; Yin, Sheng et al. (2015) Investigation of the mechanism of electron capture and electron transfer dissociation of peptides with a covalently attached free radical hydrogen atom scavenger International Journal of Mass Spectrometry; Vol. 390;

Sohn, Chang Ho; Gao, Jinshan et al. (2015) Mechanisms and energetics of free radical initiated disulfide bond cleavage in model peptides and insulin by mass spectrometry Chemical Science; Vol. 6; No. 8;

Thomas, Daniel A.; Wang, Lingtao et al. (2015) Mass Spectrometric Sampling of a Liquid Surface by Nanoliter Droplet Generation from Bursting Bubbles and Focused Acoustic Pulses: Application to Studies of Interfacial Chemistry Analytical Chemistry; Vol. 87; No. 6;

Johnson, Paul V.; Hodyss, Robert et al. (2014) Ion Funnel Augmented Mars Atmospheric Pressure Photoionization Mass Spectrometry for In Situ Detection of Organic Molecules Journal of the American Society for Mass Spectrometry; Vol. 25; No. 11;

Thomas, Daniel A.; Sohn, Chang Ho et al. (2014) Hydrogen Bonding Constrains Free Radical Reaction Dynamics at Serine and Threonine Residues in Peptides Journal of Physical Chemistry A; Vol. 118; No. 37;

Gao, Jinshan; Thomas, Daniel A. et al. (2013) Biomimetic Reagents for the Selective Free Radical and Acid–Base Chemistry of Glycans: Application to Glycan Structure Determination by Mass Spectrometry Journal of the American Chemical Society; Vol. 135; No. 29;

Mui, Wilton; Thomas, Daniel A. et al. (2013) Ion Mobility-Mass Spectrometry with a Radial Opposed Migration Ion and Aerosol Classifier (ROMIAC) Analytical Chemistry; Vol. 85; No. 13;

Brunelli, N. A.; Neidholdt, E. L. et al. (2013) Continuous Flow Ion Mobility Separation with Mass Spectrometric Detection Using a Nano-Radial Differential Mobility Analyzer at Low Flow Rates Analytical Chemistry; Vol. 85; No. 9;

Shin, Young Shik; Choi, Tae Su et al. (2012) A microfluidic-based bubble generation platform enables analysis of physical property change in phospholipid surfactant layers by interfacial ozone reaction Lab on a Chip; Vol. 12; No. 24;

Austin, Daniel E.; Shen, Andy H. T. et al. (2012) Time-of-flight mass spectrometry of mineral volatilization: Toward direct composition analysis of shocked mineral vapor Review of Scientific Instruments; Vol. 83; No. 4;

Sohn, Chang Ho; Agnew, Heather D. et al. (2012) Designer Reagents for Mass Spectrometry-Based Proteomics: Clickable Cross-Linkers for Elucidation of Protein Structures and Interactions Analytical Chemistry; Vol. 84; No. 6;

Sohn, Chang Ho; Lee, J. Eugene et al. (2012) Click Chemistry Facilitates Formation of Reporter Ions and Simplified Synthesis of Amine-Reactive Multiplexed Isobaric Tags for Protein Quantification Journal of the American Chemical Society; Vol. 134; No. 5;

Ko, Jae Yoon; Choi, Sun Mi et al. (2012) Studying Interfacial Reactions of Cholesterol Sulfate in an Unsaturated Phosphatidylglycerol Layer with Ozone Using Field Induced Droplet Ionization Mass Spectrometry Journal of the American Society for Mass Spectrometry; Vol. 23; No. 1;

Neidholdt, Evan L.; Beauchamp, J. L. (2011) Switched Ferroelectric Plasma Ionizer (SwiFerr) for Ambient Mass Spectrometry Analytical Chemistry; Vol. 83; No. 1;

Kim, Hugh I.; Kim, Hyungjun et al. (2010) Time Resolved Studies of Interfacial Reactions of Ozone with Pulmonary Phospholipid Surfactants Using Field Induced Droplet Ionization Mass Spectrometry Journal of Physical Chemistry B; Vol. 114; No. 29;

Kim, Hugh I.; Kim, Hyungjun et al. (2010) Interfacial Reactions of Ozone with Surfactant Protein B in a Model Lung Surfactant System Journal of the American Chemical Society; Vol. 132; No. 7;

Grimm, Ronald L.; Beauchamp, J. L. (2010) Evaporation and Discharge Dynamics of Highly Charged Multicomponent Droplets Generated by Electrospray Ionization Journal of Physical Chemistry A; Vol. 114; No. 3;

Neidholdt, Evan L.; Beauchamp, J. L. (2009) Ionization Mechanism of the Ambient Pressure Pyroelectric Ion Source (APPIS) and Its Applications to Chemical Nerve Agent Detection Journal of the American Society for Mass Spectrometry; Vol. 20; No. 11;

Sohn, Chang Ho; Chung, Cheol K. et al. (2009) Probing the mechanism of electron capture and electron transfer dissociation using tags with variable electron affinity Journal of the American Chemical Society; Vol. 131; No. 15;

Kim, Hugh I.; Beauchamp, J. L. (2009) Mapping disulfide bonds in insulin with the route 66 method: selective cleavage of SOC bonds using alkali and alkaline earth metal enolate complexes Journal of the American Society for Mass Spectrometry; Vol. 20; No. 1;

Kim, Hyungjun; Kim, Hugh I. et al. (2008) Experimental and Theoretical Investigation into the Correlation between Mass and Ion Mobility for Choline and Other Ammonium Cations in N_2 Analytical Chemistry; Vol. 80; No. 6;

Kim, Hugh I.; Beauchamp, J. L. (2008) Identifying the Presence of a Disulfide Linkage in Peptides by the Selective Elimination of Hydrogen Disulfide from Collisionally Activated Alkali and Alkaline Earth Metal Complexes Journal of the American Chemical Society; Vol. 130; No. 4;

Kim, Hugh I.; Beauchamp, J. L. (2007) Cluster Phase Chemistry: Collisions of Vibrationally Excited Cationic Dicarboxylic Acid Clusters with Water Molecules Initiate Dissociation of Cluster Components Journal of Physical Chemistry A; Vol. 111; No. 27;

Neidholdt, Evan L.; Beauchamp, J. L. (2007) Compact Ambient Pressure Pyroelectric Ion Source for Mass Spectrometry Analytical Chemistry; Vol. 79; No. 10;

Kim, Hugh I.; Goddard, William A., III et al. (2006) Cluster Phase Chemistry: Gas-Phase Reactions of Anionic Sodium Salts of Dicarboxylic Acid Clusters with Water Molecules Journal of Physical Chemistry A; Vol. 110; No. 25;

Grimm, Ronald L.; Hodyss, Robert et al. (2006) Probing Interfacial Chemistry of Single Droplets with Field-Induced Droplet Ionization Mass Spectrometry: Physical Adsorption of Polycyclic Aromatic Hydrocarbons and Ozonolysis of Oleic Acid and Related Compounds Analytical Chemistry; Vol. 78; No. 11;

Hodyss, Robert; Cox, Heather A. et al. (2005) Bioconjugates for Tunable Peptide Fragmentation: Free Radical Initiated Peptide Sequencing (FRIPS) Journal of the American Chemical Society; Vol. 127; No. 36;

Kim, Hugh I.; Johnson, Paul V. et al. (2005) Electrospray Ionization Ion Mobility Spectrometry of Carboxylate Anions: Ion Mobilities and a Mass−Mobility Correlation Journal of Physical Chemistry A; Vol. 109; No. 35;

Hodyss, Robert; Beauchamp, J. L. (2005) Multidimensional Detection of Nitroorganic Explosives by Gas Chromatography-Pyrolysis-Ultraviolet Detection Analytical Chemistry; Vol. 77; No. 11;

Grimm, Ronald L.; Beauchamp, J. L. (2005) Dynamics of Field-Induced Droplet Ionization: Time-Resolved Studies of Distortion, Jetting, and Progeny Formation from Charged and Neutral Methanol Droplets Exposed to Strong Electric Fields Journal of Physical Chemistry B; Vol. 109; No. 16;

Cox, Heather A.; Hodyss, Robert et al. (2005) Cluster-Phase Reactions: Gas-Phase Phosphorylation of Peptides and Model Compounds with Triphosphate Anions Journal of the American Chemical Society; Vol. 127; No. 11;

Suzumura, Atsuko; Paul, Dharam et al. (2005) Cytochromec−Crown Ether Complexes as Supramolecular Catalysts: Cold-Active Synzymes for Asymmetric Sulfoxide Oxidation in Methanol Inorganic Chemistry; Vol. 44; No. 4;

Gao, Song; Ng, Nga L. et al. (2004) Particle Phase Acidity and Oligomer Formation in Secondary Organic Aerosol Environmental Science and Technology; Vol. 38; No. 24;

Hodyss, Robert; Cox, Heather A. et al. (2004) Cluster Phase Reactions: Alkylation of Triphosphate and DNA Anions with Alkylammonium Cations Journal of Physical Chemistry A; Vol. 108; No. 45;

Austin, Daniel E.; Beauchamp, J. L. et al. (2004) A compact time-of-flight mass spectrometer for high-flux cosmic dust analysis Journal of Geophysical Research. Planets; Vol. 109; No. E7;

Cox, Heather A.; Julian, Ryan R. et al. (2004) Gas-Phase H/D Exchange of Sodiated Glycine Oligomers with ND_3: Exchange Kinetics Do Not Reflect Parent Ion Structures Journal of the American Chemical Society; Vol. 126; No. 20;

Julian, Ryan R.; Beauchamp, J. L. (2004) Selective molecular recognition of arginine by anionic salt bridge formation with bis-phosphate crown ethers: implications for gas phase peptide acidity from adduct dissociation Journal of the American Society for Mass Spectrometry; Vol. 15; No. 4;

Grimm, Ronald L.; Beauchamp, J. L. (2003) Field-Induced Droplet Ionization Mass Spectrometry Journal of Physical Chemistry B; Vol. 107; No. 51;

Julian, Ryan R.; Beauchamp, J. L. (2003) Abiotic synthesis of ATP from AMP in the gas phase: implications for the origin of biologically important molecules from small molecular clusters International Journal of Mass Spectrometry and Ion Processes; Vol. 227; No. 1;

Austin, Daniel E.; Grimm, Ronald L. et al. (2003) Hypervelocity microparticle impact studies using a novel cosmic dust mass spectrometer Journal of Geophysical Research E; Vol. 108; No. E5;

Julian, Ryan R.; May, Jeremy A. et al. (2003) Gas-Phase Synthesis of Charged Copper and Silver Fischer Carbenes from Diazomalonates: Mechanistic and Conformational Considerations in Metal-Mediated Wolff Rearrangements Journal of the American Chemical Society; Vol. 125; No. 15;

Julian, Ryan R.; May, Jeremy A. et al. (2003) Molecular Mousetraps: Gas-Phase Studies of the Covalent Coupling of Noncovalent Complexes Initiated by Reactive Carbenes Formed by Controlled Activation of Diazo Precursors Angewandte Chemie International Edition; Vol. 42; No. 9;

Ahrens, Thomas J.; Gupta, Satish C. et al. (2003) Mass spectrometer calibration of Cosmic Dust Analyzer Journal of Geophysical Research E; Vol. 108; No. E2;

Grimm, Ronald L.; Beauchamp, J. L. (2002) Evaporation and Discharge Dynamics of Highly Charged Droplets of Heptane, Octane, and p-Xylene Generated by Electrospray Ionization Analytical Chemistry; Vol. 74; No. 24;

Smith, James N.; Flagan, Richard C. et al. (2002) Droplet Evaporation and Discharge Dynamics in Electrospray Ionization Journal of Physical Chemistry A; Vol. 106; No. 42;

Julian, Ryan R.; Beauchamp, Jesse L. (2002) The unusually high proton affinity of Aza-18-crown-6 ether: Implications for the molecular recognition of lysine in peptides by lariat crown ethers Journal of the American Society for Mass Spectrometry; Vol. 13; No. 5;

Julian, Ryan R.; Hodyss, Robert et al. (2002) Nanocrystalline Aggregation of Serine Detected by Electrospray Ionization Mass Spectrometry: Origin of the Stable Homochiral Gas-Phase Serine Octamer Journal of Physical Chemistry B; Vol. 106; No. 6;

Austin, Daniel E.; Ahrens, Thomas J. et al. (2002) Dustbuster: a compact impact-ionization time-of-flight mass spectrometer for in situ analysis of cosmic dust Review of Scientific Instruments; Vol. 73; No. 1;

Hodyss, Robert; Julian, Ryan R. et al. (2001) Spontaneous chiral separation in noncovalent molecular clusters Chirality; Vol. 13; No. 10; 12th International Symposium on Chiral Discrimination, September 2000 , Chamonix‐Mont Blanc, Switzerland

Julian, Ryan R.; Beauchamp, J. L. (2001) Site specific sequestering and stabilization of charge in peptides by supramolecular adduct formation with 18-crown-6 ether by way of electrospray ionization International Journal of Mass Spectrometry and Ion Processes; Vol. 210-211;

Julian, Ryan R.; Hodyss, Robert et al. (2001) Salt Bridge Stabilization of Charged Zwitterionic Arginine Aggregates in the Gas Phase Journal of the American Chemical Society; Vol. 123; No. 15;

Kossakovski, Dmitri; Beauchamp, J. L. (2000) Topographical and Chemical Microanalysis of Surfaces with a Scanning Probe Microscope and Laser-Induced Breakdown Spectroscopy Analytical Chemistry; Vol. 72; No. 19;

Lee, Sang-Won; Cox, Heather et al. (2000) Chemistry in Nanodroplets: Studies of Protonation Sites of Substituted Anilines in Water Clusters Using FT-ICR Journal of the American Chemical Society; Vol. 122; No. 38;

Jyoti, G.; Gupta, Satish C. et al. (1999) Mass spectrometer calibration of high velocity impact ionization based cosmic dust analyzer International Journal of Impact Engineering; Vol. 23; No. 1; 1998 Hypervelocity Impact Symposium, 16-19 November 1998 , Huntsville, AL

Lee, Sang-Won; Chang, Sukbok et al. (1999) Slow Evaporation of Water from Hydrated Salen Transition Metal Complexes in the Gas Phase Reveals Details of Metal Ligand Interactions Journal of the American Chemical Society; Vol. 121; No. 43;

Unger, M. A.; Kossakovski, D. A. et al. (1998) Etched chalcogenide fibers for near-field infrared scanning microscopy Review of Scientific Instruments; Vol. 69; No. 8;

Crellin, Kevin C.; Dalleska, Nathan et al. (1997) Chemical ionization of the nitrate ester explosives EGDN and PETN by trimethylsilyl cation and comparison of the reactivity of nitrate ester and nitro explosives toward trimethylsilyl cation International Journal of Mass Spectrometry and Ion Processes; Vol. 165-166;

Crellin, Kevin C.; Widmer, M. et al. (1997) Chemical Ionization of TNT and RDX with Trimethylsilyl Cation Analytical Chemistry; Vol. 69; No. 6;

Crellin, Kevin C.; Beauchamp, J. L. et al. (1996) σ-Bond Metathesis Reactions of Sc(CH_3)_2^+ with Secondary C−H Bonds:  Reactivity with Cyclohexane and Cyclopentane Organometallics; Vol. 15; No. 25;

Crellin, Kevin C.; Geribaldi, Serge et al. (1995) Group and Site Selective σ-Bond Metathesis Reactions of CH_3ScCH_2CH_3^+ with [2,2-D_2]Propane, [1,1,1,4,4,4-D_6]-n-Butane, [2-D]-Isobutane, and n-Pentane Organometallics; Vol. 14; No. 9;

Murthy, Srihari; Beauchamp, J. L. (1995) Fourier Transform Ion Cyclotron Resonance Spectrometric Studies of Lewis Acid-Base Chemistry in Monochlorosilane Journal of Physical Chemistry; Vol. 99; No. 22;

Crellin, Kevin C.; Geribaldi, Serge et al. (1994) Site Selective σ-Bond Metathesis Reactions of Sc(CD_3)_2^+ with [2,2-D_2]Propane, [1,1,1,4,4,4-D_6]-n-Butane, and [2-D]Isobutane Organometallics; Vol. 13; No. 9;

Marzluff, Elaine M.; Campbell, Sherrie et al. (1994) Low-Energy Dissociation Pathways of Small Deprotonated Peptides in the Gas Phase Journal of the American Chemical Society; Vol. 116; No. 17;

Marzluff, Elaine M.; Campbell, Sherrie et al. (1994) Collisional Activation of Large Molecules Is an Efficient Process Journal of the American Chemical Society; Vol. 116; No. 15;

Campbell, Sherrie; Marzluff, Elaine M. et al. (1994) Proton Affinities and Photoelectron Spectra of Phenylalanine and N-Methyl- and N,N-Dimethylphenylalanine. Correlation of Lone Pair Ionization Energies with Proton Affinities and Implications for N-Methylation as a Method to Effect Site Specific Protonation of Peptides Journal of the American Chemical Society; Vol. 116; No. 12;

Murthy, Srihari; Nagano, Yatsuhisa et al. (1992) Electron impact ionization of phenylsilane. Evidence for the formation of phenylsilyl and silacycloheptatrienyl cations Journal of the American Chemical Society; Vol. 114; No. 9;

Irikura, Karl K.; Goddard, W. A., III et al. (1992) Singlet-triplet gaps in substituted carbenes CXY (X, Y = H, F, Cl, Br, I, SiH_3) Journal of the American Chemical Society; Vol. 114; No. 1;

Shin, Seung Koo; Beauchamp, J. L. (1991) Infrared multiphoton dissociation spectrum of CF_3Mn(CO)_4I^- Journal of Molecular Structure; Vol. 249; No. 1;

Wight, Charles A.; Beauchamp, J. L. (1990) Infrared spectra of butenyl anions: multiphoton electron detachment as a photochemical probe of isomeric structures of gas phase anions International Journal of Mass Spectrometry and Ion Processes; Vol. 100;

Shin, Seung Koo; Goddard, William A., III et al. (1990) Singlet-triplet energy gaps in fluorine-substituted methylenes and silylenes Journal of Chemical Physics; Vol. 93; No. 7;

Shin, Seung Koo; Goddard, William A., III et al. (1990) Singlet-triplet energy gaps in chlorine-substituted methylenes and silylenes Journal of Physical Chemistry; Vol. 94; No. 18;

Shin, Seung Koo; Beauchamp, J. L. (1990) Infrared multiphoton dissociation spectrum of CF_3Mn(CO)_3(NO)^- Journal of the American Chemical Society; Vol. 112; No. 6;

Shin, Seung Koo; Beauchamp, J. L. (1990) Identification of Mn(CO)_nCF_3^- (n = 4, 5) structural isomers by IR multiphoton dissociation, collision-induced dissociation, and specific ligand displacement reactions: studies of the trifluoromethyl migratory decarbonylation reaction in the gas phase Journal of the American Chemical Society; Vol. 112; No. 6;

Wight, Charles A.; Beauchamp, J. L. (1989) Multiphoton electron detachment studies of C_7H_7− using a low-power infrared laser. Competition of radiative and collisional relaxation with vibrational excitation Chemical Physics; Vol. 134; No. 2-3;

Kang, H.; Beauchamp, J. L. (1986) Gas-phase studies of alkane oxidation by transition-metal oxides. Selective oxidation by CrO⁺ Journal of the American Chemical Society; Vol. 108; No. 24;

Tolbert, M. A.; Beauchamp, J. L. (1986) Mechanistic and kinetic study of alkane activation by Ti⁺ and V⁺ in the gas phase. Lifetimes of reaction intermediates Journal of the American Chemical Society; Vol. 108; No. 24;

Tolbert, M. A.; Mandich, M. L. et al. (1986) Activation of alkanes by ruthenium, rhodium, and palladium ions in the gas phase: striking differences in reactivity of first- and second-row metal ions Journal of the American Chemical Society; Vol. 108; No. 19;

Kang, H.; Beauchamp, J. L. (1986) Gas-phase studies of alkene oxidation by transition-metal oxides. Ion-beam studies of CrO⁺ Journal of the American Chemical Society; Vol. 108; No. 19;

Kang, Heon; Jacobson, Denley B. et al. (1986) Reactions of transition-metal ions with methylsilanes in the gas phase. The formation and characteristics of strong transition metal-silylene bonds Journal of the American Chemical Society; Vol. 108; No. 19;

Kruppa, Gary H.; Beauchamp, J. L. (1986) Energetics and structure of the 1- and 2-adamantyl radicals and their corresponding carbonium ions by photoelectron spectroscopy Journal of the American Chemical Society; Vol. 108; No. 9;

Hanratty, M. A.; Carter, E. A. et al. (1986) Electronic states of chromium carbene ions characterized by high-resolution translational energy loss spectroscopy Chemical Physics Letters; Vol. 123; No. 4;

Wight, Charles A.; Beauchamp, J. L. (1984) Infrared laser photodetachment of electrons from vibrationally excited allyl anions Journal of Physical Chemistry; Vol. 88; No. 19;

George, Patricia M.; Beauchamp, J. L. (1982) Dissociative electron attachment reactions of transition metal carbonyls and their apparent influence on the thermalization of electrons by CO2 Journal of Chemical Physics; Vol. 76; No. 6;

Armentrout, P. B.; Halle, L. F. et al. (1982) Reaction of Cr + , Mn + , Fe + , Co + , and Ni + with O2 and N2O. Examination of the translational energy dependence of the cross sections of endothermic reactions Journal of Chemical Physics; Vol. 76; No. 5;

Wight, Charles A.; Beauchamp, J. L. (1981) Infrared spectra of gas-phase ions and their use in elucidating reaction mechanisms. Identification of C_7H_7- structural isomers by multiphoton electron detachment using a low-power infrared laser Journal of the American Chemical Society; Vol. 103; No. 21;

Armentrout, P. B.; Halle, L. F. et al. (1981) Periodic trends in transition metal-hydrogen, metal-carbon, and metal-oxygen bond dissociation energies. Correlation with reactivity and electronic structure Journal of the American Chemical Society; Vol. 103; No. 21;

Thorne, L. R.; Beauchamp, J. L. (1981) Efficient multiphoton dissociation of CF3I+ in the metastable X-tilde 2E1/2 excited state using cw infrared laser radiation Journal of Chemical Physics; Vol. 74; No. 9;

Armentrout, P. B.; Beauchamp, J. L. (1981) Cobalt carbene ion: Reactions of Co+ with C2H4, cyclo-C3H6, and cyclo-C2H4O Journal of Chemical Physics; Vol. 74; No. 5;

Casassa, Michael P.; Bomse, David S. et al. (1980) Infrared photochemistry of ethylene clusters Journal of Chemical Physics; Vol. 72; No. 12;

Woodin, R. L.; Foster, M. S. et al. (1980) Ion cyclotron resonance studies of radiative and dissociative electron attachment processes at low pressures Journal of Chemical Physics; Vol. 72; No. 7;

George, Patricia M.; Swanson, Mark N. et al. (1979) Simple pressure gauge for uranium hexafluoride Review of Scientific Instruments; Vol. 50; No. 12;

Murphy, M. K.; Beauchamp, J. L. (1977) Fluorine and alkyl substituent effects on the gas-phase Lewis acidities of boranes by ion cyclotron resonance spectroscopy Inorganic Chemistry; Vol. 16; No. 10;

Armentrout, P. B.; Hodges, R. V. et al. (1977) Endothermic reactions of uranium ions with N2, D2, and CD4 Journal of Chemical Physics; Vol. 66; No. 10;

Corderman, Reed R.; LeBreton, P. R. et al. (1976) Photoionization and ion cyclotron resonance studies of the ion chemistry of ethylene oxide Journal of Chemical Physics; Vol. 65; No. 11;

Williamson, Ashley D.; Beauchamp, J. L. (1976) Ion molecule reactions in vinyl fluoride by photoionization. Effects of vibrational excitation on major reaction pathways Journal of Chemical Physics; Vol. 65; No. 8;

Ridge, D. P.; Beauchamp, J. L. (1976) The interaction of ions with nonpolar neutrals: The collision broadening of ion cyclotron resonance lines of ions in hydrogen and methane Journal of Chemical Physics; Vol. 64; No. 7;

Beauchamp, J. L. (1976) Ion cyclotron resonance studies of endothermic reactions of UF6- generated by surface ionization Journal of Chemical Physics; Vol. 64; No. 3;

Beauchamp, J. L. (1976) Properties and reactions of uranium hexafluoride by ion cyclotron resonance spectroscopy Journal of Chemical Physics; Vol. 64; No. 2;

Staley, Ralph H.; Harding, Lawrence B. et al. (1975) Triplet states of the amide group. Trapped electron spectra of formamide and related molecules Chemical Physics Letters; Vol. 36; No. 5;

Mosher, Oren A.; Foster, Michael S. et al. (1975) Electronic spectroscopy of trans-azomethane by electron impact Journal of Chemical Physics; Vol. 62; No. 9;

Staley, Ralph H.; Beauchamp, J. L. (1975) Equilibrium studies of gas phase ion-molecule reactions. Ion cyclotron resonance results for the reaction CO_2H+ + CH_4 ⇄ CH+_5 + CO_2 Journal of Chemical Physics; Vol. 62; No. 5;

LeBreton, P. R.; Williamson, A. D. et al. (1975) Photoionization and ion cyclotron resonance studies of the reaction C2H4+ + C2H4 → C3H5+ + CH3 Journal of Chemical Physics; Vol. 62; No. 5;

McMahon, T. B.; Beauchamp, J. L. (1971) Determination of Ion Transit Times in an Ion Cyclotron Resonance Spectrometer Review of Scientific Instruments; Vol. 42; No. 11;

Beauchamp, J. L. (1971) Ion Cyclotron Resonance Spectroscopy Annual Review of Physical Chemistry; Vol. 22;

Holtz, David; Beauchamp, J. L. (1971) Xenon as a Nucleophile in Gas-Phase Displacement Reactions: Formation of the Methyl Xenonium Ion Science; Vol. 173; No. 4003;

Ridge, Douglas P.; Beauchamp, J. L. (1969) Application of Ion Cyclotron Resonance to the Study of Inelastic Excitation by Low-Energy Electrons Journal of Chemical Physics; Vol. 51; No. 1;

Beauchamp, J. L.; Armstrong, John T. (1969) An Ion Ejection Technique for the Study of Ion-Molecule Reactions with Ion Cyclotron Resonance Spectroscopy Review of Scientific Instruments; Vol. 40; No. 1;

Beauchamp, J. L.; Buttrill, S. E., Jr. (1968) Proton Affinities of H2S and H2O Journal of Chemical Physics; Vol. 48; No. 4;

Beauchamp, J. L. (1967) Theory of Collision-Broadened Ion Cyclotron Resonance Spectra Journal of Chemical Physics; Vol. 46; No. 4;

Anders, L. R.; Beauchamp, J. L. et al. (1966) Ion-Cyclotron Double Resonance Journal of Chemical Physics; Vol. 45; No. 3;

Whitesides, George M.; Beauchamp, Jesse L. et al. (1963) Relative Signs of the ^(31)P-^1H and ^(31)P-C-^1H Nuclear Magnetic Resonance Coupling Constants Journal of the American Chemical Society; Vol. 85; No. 17;