Beauchamp, Jesse

Article from CaltechAUTHORS

Solling, Theis I. and Dalleska, Nathan F., el al. (2026) Paper spray analysis of crude oil samples: comparing traditional characterization schemes with mass spectrometric outcomes; International Journal of Mass Spectrometry; Vol. 520; 117554; 10.1016/j.ijms.2025.117554
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Sølling, Theis I. and El Zohry, Ahmed M., el al. (2024) Tools to Investigate Structure at Hydrocarbon–Air Interfaces: Field-Induced Droplet Ionization Mass Spectrometry and Sum-Frequency Generation with Pulsed Lasers; Energy & Fuels; Vol. 38; No. 4; 2874-2882; 10.1021/acs.energyfuels.3c04569
Geng, Wen-Chao and Zhang, Dongmei, el 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; 12684-12688; 10.1002/anie.202001355
Fabijanczuk, Kimberly and Gaspar, Kaylee, el al. (2019) Resin- and Magnetic Nanoparticle-Based Free Radical Probes for Glycan Capture, Isolation, and Structural Characterization; Analytical Chemistry; Vol. 91; No. 24; 15387-15396; PMCID PMC7537365; 10.1021/acs.analchem.9b01303
Mu, Chaonan and Wang, Jie, el 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; 8082-8086; 10.1002/anie.201902815
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Zhang, Xinxing and Barraza, Kevin M., el al. (2018) Subtle Changes in Lipid Environment Have Profound Effects on Membrane Oxidation Chemistry; Journal of the American Chemical Society; Vol. 140; No. 50; 17492-17498; 10.1021/jacs.8b08610
Huang, Yuanlong and Barraza, Kevin M., el 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; 6445-6456; 10.1021/acs.jpca.8b05353
Zhang, Xinxing and Barraza, Kevin M., el 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; 3255-3260; PMCID PMC5879709; 10.1073/pnas.1722323115
Upton, Kathleen T. and Schilling, Katherine A., el 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; 5065-5074; 10.1039/c7ay00971b
Zhang, Xinxing and Barraza, Kevin M., el al. (2017) Time Resolved Study of Hydroxyl Radical Oxidation of Oleic Acid at the Air-Water Interface; Chemical Physics Letters; Vol. 683; 76-82; 10.1016/j.cplett.2017.05.051
Thomas, Daniel A. and Coggon, Matthew M., el 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; 12241-12249; 10.1021/acs.est.6b03588
Desai, Nikunj and Thomas, Daniel A., el al. (2016) Eradicating mass spectrometric glycan rearrangement by utilizing free radicals; Chemical Science; Vol. 7; No. 8; 5390-5397; PMCID PMC6020757; 10.1039/C6SC01371F
Sohn, Chang Ho and Yin, Sheng, el 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; 49-55; PMCID PMC4892187; 10.1016/j.ijms.2015.07.007
Sohn, Chang Ho and Gao, Jinshan, el 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; 4550-4560; PMCID PMC5666513; 10.1039/C5SC01305D
Thomas, Daniel A. and Wang, Lingtao, el 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; 3336-3344; 10.1021/ac504494t
Johnson, Paul V. and Hodyss, Robert, el 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; 1832-1840; 10.1007/s13361-014-0930-z
Thomas, Daniel A. and Sohn, Chang Ho, el 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; 8380-8392; 10.1021/jp501367w
Gao, Jinshan and Thomas, Daniel A., el 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; 10684-10692; 10.1021/ja402810t
Mui, Wilton and Thomas, Daniel A., el al. (2013) Ion Mobility-Mass Spectrometry with a Radial Opposed Migration Ion and Aerosol Classifier (ROMIAC); Analytical Chemistry; Vol. 85; No. 13; 6319-6326; 10.1021/ac400580u
Brunelli, N. A. and Neidholdt, E. L., el 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; 4335-4341; 10.1021/ac3032417
Shin, Young Shik and Choi, Tae Su, el 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; 5243-5248; PMCID PMC3681610; 10.1039/c2lc40940b
Austin, Daniel E. and Shen, Andy H. T., el 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; Art. No. 044502; 10.1063/1.4705745
Sohn, Chang Ho and Agnew, Heather D., el 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; 2662-2669; PMCID PMC3310289; 10.1021/ac202637n
Sohn, Chang Ho and Lee, J. Eugene, el 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; 2672-2680; PMCID PMC3668889; 10.1021/ja2099003
Ko, Jae Yoon and Choi, Sun Mi, el 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; 141-152; 10.1007/s13361-011-0275-9
Neidholdt, Evan L. and Beauchamp, J. L. (2011) Switched Ferroelectric Plasma Ionizer (SwiFerr) for Ambient Mass Spectrometry; Analytical Chemistry; Vol. 83; No. 1; 38-43; 10.1021/ac1013833
Kim, Hugh I. and Kim, Hyungjun, el 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; 9496-9503; PMCID PMC3695605; 10.1021/jp102332g
Kim, Hugh I. and Kim, Hyungjun, el 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; 2254-2263; PMCID PMC2830728; 10.1021/ja908477w
Grimm, Ronald L. and 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; 1411-1419; 10.1021/jp907162w
Neidholdt, Evan L. and 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; 2093-2099; 10.1016/j.jasms.2009.07.009
Sohn, Chang Ho and Chung, Cheol K., el 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; 5444-5459; PMCID PMC2765496; 10.1021/ja806534r
Kim, Hugh I. and 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; 157-166; 10.1016/j.jasms.2008.10.003
Kim, Hyungjun and Kim, Hugh I., el 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; 1928-1936; 10.1021/ac701888e
Kim, Hugh I. and 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; 1245-1257; 10.1021/ja075698w
Kim, Hugh I. and 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; 5954-5967; 10.1021/jp0706580
Neidholdt, Evan L. and Beauchamp, J. L. (2007) Compact Ambient Pressure Pyroelectric Ion Source for Mass Spectrometry; Analytical Chemistry; Vol. 79; No. 10; 3945-3948; 10.1021/ac070261s
Kim, Hugh I. and Goddard, William A., III, el 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; 7777-7786; 10.1021/jp055944v
Grimm, Ronald L. and Hodyss, Robert, el 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; 3800-3806; 10.1021/ac0601922
Hodyss, Robert and Cox, Heather A., el al. (2005) Bioconjugates for Tunable Peptide Fragmentation: Free Radical Initiated Peptide Sequencing (FRIPS); Journal of the American Chemical Society; Vol. 127; No. 36; 12436-12437; 10.1021/ja052042z
Kim, Hugh I. and Johnson, Paul V., el 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; 7888-7895; 10.1021/jp051274h
Hodyss, Robert and Beauchamp, J. L. (2005) Multidimensional Detection of Nitroorganic Explosives by Gas Chromatography-Pyrolysis-Ultraviolet Detection; Analytical Chemistry; Vol. 77; No. 11; 3607-3610; 10.1021/ac050308e
Grimm, Ronald L. and 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; 8244-8250; 10.1021/jp0450540
Cox, Heather A. and Hodyss, Robert, el 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; 4084-4090; 10.1021/ja0452673
Suzumura, Atsuko and Paul, Dharam, el al. (2005) Cytochromec−Crown Ether Complexes as Supramolecular Catalysts: Cold-Active Synzymes for Asymmetric Sulfoxide Oxidation in Methanol; Inorganic Chemistry; Vol. 44; No. 4; 904-910; 10.1021/ic0486567
Gao, Song and Ng, Nga L., el al. (2004) Particle Phase Acidity and Oligomer Formation in Secondary Organic Aerosol; Environmental Science and Technology; Vol. 38; No. 24; 6582-6589; 10.1021/es049125k
Hodyss, Robert and Cox, Heather A., el al. (2004) Cluster Phase Reactions: Alkylation of Triphosphate and DNA Anions with Alkylammonium Cations; Journal of Physical Chemistry A; Vol. 108; No. 45; 10030-10034; 10.1021/jp0475032
Austin, Daniel E. and Beauchamp, J. L., el al. (2004) A compact time-of-flight mass spectrometer for high-flux cosmic dust analysis; Journal of Geophysical Research. Planets; Vol. 109; No. E7; Art. No. E07S07; 10.1029/2003JE002184
Cox, Heather A. and Julian, Ryan R., el 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; 6485-6490; 10.1021/ja049834y
Julian, Ryan R. and 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; 616-624; 10.1016/j.jasms.2003.12.015
Grimm, Ronald L. and Beauchamp, J. L. (2003) Field-Induced Droplet Ionization Mass Spectrometry; Journal of Physical Chemistry B; Vol. 107; No. 51; 14161-14163; 10.1021/jp037099r
Julian, Ryan R. and 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; 147-159; 10.1016/S1387-3806(03)00048-4
Austin, Daniel E. and Grimm, Ronald L., el al. (2003) Hypervelocity microparticle impact studies using a novel cosmic dust mass spectrometer; Journal of Geophysical Research E; Vol. 108; No. E5; Art. No. 5038; 10.1029/2002JE001947
Julian, Ryan R. and May, Jeremy A., el 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; 4478-4486; 10.1021/ja028337j
Julian, Ryan R. and May, Jeremy A., el 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; 1012-1015; 10.1002/anie.200390258
Ahrens, Thomas J. and Gupta, Satish C., el al. (2003) Mass spectrometer calibration of Cosmic Dust Analyzer; Journal of Geophysical Research E; Vol. 108; No. E2; Art. No. 5007; 10.1029/2002JE001912
Grimm, Ronald L. and 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; 6291-6297; 10.1021/ac025889b
Smith, James N. and Flagan, Richard C., el al. (2002) Droplet Evaporation and Discharge Dynamics in Electrospray Ionization; Journal of Physical Chemistry A; Vol. 106; No. 42; 9957-9967; 10.1021/jp025723e
Julian, Ryan R. and 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; 493-498; 10.1016/s1044-0305(02)00368-9
Julian, Ryan R. and Hodyss, Robert, el 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; 1219-1228; 10.1021/jp012265l
Austin, Daniel E. and Ahrens, Thomas J., el 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; 185-189; 10.1063/1.1427762
Hodyss, Robert and Julian, Ryan R., el al. (2001) Spontaneous chiral separation in noncovalent molecular clusters; Chirality; Vol. 13; No. 10; 703-706; 10.1002/chir.10021
Julian, Ryan R. and 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; 613-623; 10.1016/S1387-3806(01)00431-6
Julian, Ryan R. and Hodyss, Robert, el al. (2001) Salt Bridge Stabilization of Charged Zwitterionic Arginine Aggregates in the Gas Phase; Journal of the American Chemical Society; Vol. 123; No. 15; 3577-3583; 10.1021/ja003105a
Kossakovski, Dmitri and 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; 4731-4737; 10.1021/ac0005058
Lee, Sang-Won and Cox, Heather, el 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; 9201-9205; 10.1021/ja0009875
Jyoti, G. and Gupta, Satish C., el al. (1999) Mass spectrometer calibration of high velocity impact ionization based cosmic dust analyzer; International Journal of Impact Engineering; Vol. 23; No. 1; 401-408; 10.1016/S0734-743X(99)00090-1
Lee, Sang-Won and Chang, Sukbok, el 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; 10152-10156; 10.1021/ja991658j
Unger, M. A. and Kossakovski, D. A., el al. (1998) Etched chalcogenide fibers for near-field infrared scanning microscopy; Review of Scientific Instruments; Vol. 69; No. 8; 2988-2993; 10.1063/1.1149045
Crellin, Kevin C. and Dalleska, Nathan, el 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; 641-653; 10.1016/S0168-1176(97)00189-4
Crellin, Kevin C. and Widmer, M., el al. (1997) Chemical Ionization of TNT and RDX with Trimethylsilyl Cation; Analytical Chemistry; Vol. 69; No. 6; 1092-1101; 10.1021/ac961003q
Crellin, Kevin C. and Beauchamp, J. L., el 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; 5368-5373; 10.1021/om960489y
Crellin, Kevin C. and Geribaldi, Serge, el 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; 4366-4373; 10.1021/om00009a046
Murthy, Srihari and 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; 9118-9121; 10.1021/j100022a025
Crellin, Kevin C. and Geribaldi, Serge, el 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; 3733-3736; 10.1021/om00021a054
Marzluff, Elaine M. and Campbell, Sherrie, el al. (1994) Low-Energy Dissociation Pathways of Small Deprotonated Peptides in the Gas Phase; Journal of the American Chemical Society; Vol. 116; No. 17; 7787-7796; 10.1021/ja00096a040
Marzluff, Elaine M. and Campbell, Sherrie, el al. (1994) Collisional Activation of Large Molecules Is an Efficient Process; Journal of the American Chemical Society; Vol. 116; No. 15; 6947-6948; 10.1021/ja00094a064
Campbell, Sherrie and Marzluff, Elaine M., el 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; 5257-5264; 10.1021/ja00091a033
Murthy, Srihari and Nagano, Yatsuhisa, el 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; 3573-3574; 10.1021/ja00035a072
Irikura, Karl K. and Goddard, W. A., III, el 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; 48-51; 10.1021/ja00027a006
Shin, Seung Koo and Beauchamp, J. L. (1991) Infrared multiphoton dissociation spectrum of CF_3Mn(CO)_4I^-; Journal of Molecular Structure; Vol. 249; No. 1; 1-9; 10.1016/0022-2860(91)85050-D
Wight, Charles A. and 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; 445-455; 10.1016/0168-1176(90)85087-I
Shin, Seung Koo and Goddard, William A., III, el al. (1990) Singlet-triplet energy gaps in fluorine-substituted methylenes and silylenes; Journal of Chemical Physics; Vol. 93; No. 7; 4986-4993; 10.1063/1.458636
Shin, Seung Koo and Goddard, William A., III, el al. (1990) Singlet-triplet energy gaps in chlorine-substituted methylenes and silylenes; Journal of Physical Chemistry; Vol. 94; No. 18; 6963-6969; 10.1021/j100381a010
Shin, Seung Koo and Beauchamp, J. L. (1990) Infrared multiphoton dissociation spectrum of CF_3Mn(CO)_3(NO)^-; Journal of the American Chemical Society; Vol. 112; No. 6; 2066-2069; 10.1021/ja00162a004
Shin, Seung Koo and 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; 2057-2066; 10.1021/ja00162a003
Wight, Charles A. and 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; 375-384; 10.1016/0301-0104(89)87169-1
Kang, H. and 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; 7502-7509; 10.1021/ja00284a011
Tolbert, M. A. and 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; 7509-7517; 10.1021/ja00284a012
Tolbert, M. A. and Mandich, M. L., el 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; 5675-5683; 10.1021/ja00279a003
Kang, H. and 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; 5663-5668; 10.1021/ja00279a001
Kang, Heon and Jacobson, Denley B., el 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; 5668-5675; 10.1021/ja00279a002
Kruppa, Gary H. and 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; 2162-2169; 10.1021/ja00269a007
Hanratty, M. A. and Carter, E. A., el al. (1986) Electronic states of chromium carbene ions characterized by high-resolution translational energy loss spectroscopy; Chemical Physics Letters; Vol. 123; No. 4; 239-242; 10.1016/0009-2614(86)80064-1
Wight, Charles A. and Beauchamp, J. L. (1984) Infrared laser photodetachment of electrons from vibrationally excited allyl anions; Journal of Physical Chemistry; Vol. 88; No. 19; 4426-4430; 10.1021/j150663a049
George, Patricia M. and 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; 2959-2964; 10.1063/1.443389
Armentrout, P. B. and Halle, L. F., el 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; 2449-2457; 10.1063/1.443274
Wight, Charles A. and 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; 6499-6501; 10.1021/ja00411a042
Armentrout, P. B. and Halle, L. F., el 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; 6501-6502; 10.1021/ja00411a043
Thorne, L. R. and 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; 5100-5105; 10.1063/1.44171
Armentrout, P. B. and 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; 2819-2826; 10.1063/1.441453
Casassa, Michael P. and Bomse, David S., el al. (1980) Infrared photochemistry of ethylene clusters; Journal of Chemical Physics; Vol. 72; No. 12; 6805-6806; 10.1063/1.439174
Woodin, R. L. and Foster, M. S., el al. (1980) Ion cyclotron resonance studies of radiative and dissociative electron attachment processes at low pressures; Journal of Chemical Physics; Vol. 72; No. 7; 4223-4227; 10.1063/1.439653
George, Patricia M. and Swanson, Mark N., el al. (1979) Simple pressure gauge for uranium hexafluoride; Review of Scientific Instruments; Vol. 50; No. 12; 1640-1644; 10.1063/1.1135745
Murphy, M. K. and 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; 2437-2443; 10.1021/ic50176a003
Armentrout, P. B. and Hodges, R. V., el al. (1977) Endothermic reactions of uranium ions with N2, D2, and CD4; Journal of Chemical Physics; Vol. 66; No. 10; 4683-4688; 10.1063/1.433678
Corderman, Reed R. and LeBreton, P. R., el al. (1976) Photoionization and ion cyclotron resonance studies of the ion chemistry of ethylene oxide; Journal of Chemical Physics; Vol. 65; No. 11; 4929-4939; 10.1063/1.432969
Williamson, Ashley D. and 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; 3196-3202; 10.1063/1.433491
Ridge, D. P. and 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; 2735-2746; 10.1063/1.432596
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; 929-935; 10.1063/1.432285
Beauchamp, J. L. (1976) Properties and reactions of uranium hexafluoride by ion cyclotron resonance spectroscopy; Journal of Chemical Physics; Vol. 64; No. 2; 718-723; 10.1063/1.432217
Staley, Ralph H. and Harding, Lawrence B., el al. (1975) Triplet states of the amide group. Trapped electron spectra of formamide and related molecules; Chemical Physics Letters; Vol. 36; No. 5; 589-593; 10.1016/0009-2614(75)85345-0
Mosher, Oren A. and Foster, Michael S., el al. (1975) Electronic spectroscopy of trans-azomethane by electron impact; Journal of Chemical Physics; Vol. 62; No. 9; 3424-3430; 10.1063/1.430976
Staley, Ralph H. and 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; 1998-1999; 10.1063/1.430652
LeBreton, P. R. and Williamson, A. D., el al. (1975) Photoionization and ion cyclotron resonance studies of the reaction C2H4+ + C2H4 → C3H5+ + CH3; Journal of Chemical Physics; Vol. 62; No. 5; 1623-1631; 10.1063/1.430713
McMahon, T. B. and Beauchamp, J. L. (1971) Determination of Ion Transit Times in an Ion Cyclotron Resonance Spectrometer; Review of Scientific Instruments; Vol. 42; No. 11; 1632-1638; 10.1063/1.1684956
Beauchamp, J. L. (1971) Ion Cyclotron Resonance Spectroscopy; Annual Review of Physical Chemistry; Vol. 22; 527-561; 10.1146/annurev.pc.22.100171.002523
Holtz, David and Beauchamp, J. L. (1971) Xenon as a Nucleophile in Gas-Phase Displacement Reactions: Formation of the Methyl Xenonium Ion; Science; Vol. 173; No. 4003; 1237-1238; 10.1126/science.173.4003.1237
Ridge, Douglas P. and 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; 470-471; 10.1063/1.1671764
Beauchamp, J. L. and 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; 123-128; 10.1063/1.1683704
Beauchamp, J. L. and Buttrill, S. E., Jr. (1968) Proton Affinities of H2S and H2O; Journal of Chemical Physics; Vol. 48; No. 4; 1783-1789; 10.1063/1.1668912
Beauchamp, J. L. (1967) Theory of Collision-Broadened Ion Cyclotron Resonance Spectra; Journal of Chemical Physics; Vol. 46; No. 4; 1231-1243; 10.1063/1.1840841
Anders, L. R. and Beauchamp, J. L., el al. (1966) Ion-Cyclotron Double Resonance; Journal of Chemical Physics; Vol. 45; No. 3; 1062-1063; 10.1063/1.1727658
Whitesides, George M. and Beauchamp, Jesse L., el 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; 2665-2666; 10.1021/ja00900a032