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Author:Beauchamp

92 matching references were found.

Armentrout, P.; Beauchamp, J., Cobalt carbene ion: Reactions of Co+ with C2H4, cyclo-C3H6, and cyclo-C2H4O, J. Chem. Phys., 1981, 74, 2819. [all data]

Dixon, D.A.; Holtz, D.; Beauchamp, J.L., Acidity, basicity, and gas-phase ion chemistry of hydrogen selenide by ion cyclotron resonance spectroscopy, Inorg. Chem., 1972, 11, 960. [all data]

Foster, M.S.; Beauchamp, J.L., Gas-phase ion chemistry of azomethane by ion cyclotron resonance spectroscopy, J. Am. Chem. Soc., 1972, 94, 2425. [all data]

Beauchamp, J.L., Chemical applications of new developments in ion cyclotron resonance spectroscopy, Adv. Mass Spectrom., 1974, 6, 717. [all data]

Beauchamp, J.L.; Caserio, M.C.; McMahon, T.B., Ion-molecule reactions of tert-butyl alcohol by ion cyclotron resonance spectroscopy, J. Am. Chem. Soc., 1974, 96, 6243. [all data]

Blint, J.; McMahon, T.B.; Beauchamp, J.L., Gas phase ion chemistry of fluoromethanes by ion cyclotron resonance spectroscopy. New techniques for the determination of carbonium ion stabilities, J. Am. Chem. Soc., 1974, 96, 1269. [all data]

Foster, M.S.; Williamson, A.D.; Beauchamp, J.L., Photoionization mass spectrometry of trans-azomethane, Int. J. Mass Spectrom. Ion Phys., 1974, 15, 429. [all data]

Freiser, B.S.; Beauchamp, J.L., Gas phase ion chemistry and photochemistry of ions generated from perfluoropropylene. Photodissociation of the perfluoroallyl cation, J. Am. Chem. Soc., 1974, 96, 6260. [all data]

Ridge, D.P.; Beauchamp, J.L., Chemical consequences of strong hydrogen bonding in the reactions of organic ions in the gas phase. Base induced elimination reactions, J. Am. Chem. Soc., 1974, 96, 637. [all data]

Staley, R.H.; Beauchamp, J.L., Basicities ion-molecule reactions of the methylphosphines in the gas phase by ion cyclotron resonance spectroscopy, J. Am. Chem. Soc., 1974, 96, 6252. [all data]

Wyatt, R.H.; Holtz, D.; McMahon, T.B.; Beauchamp, J.L., Acidity, basicity, and ion-molecule reactions of arsine in the gas phase by ICR spectroscopy, Inorg. Chem., 1974, 13, 1511. [all data]

Beauchamp, J.L., Ion cyclotron resonance studies of endothermic reactions of UF6-Generated by surface ionization, J. Chem. Phys., 1976, 64, 929. [all data]

Corderman, R.R.; LeBreton, P.R.; Buttrill, S.E., Jr.; Williamson, A.D.; Beauchamp, J.L., Photoionization and ion cyclotron resonance studies of the ion chemistry of ethylene oxide, J. Chem. Phys., 1976, 65, 4929. [all data]

Murphy, M.K.; Beauchamp, J.L., Acid-base properties and gas-phase ion chemistry of (CH3)3B, J. Am. Chem. Soc., 1976, 98, 1433. [all data]

Staley, R.H.; Kleckner, J.E.; Beauchamp, J.L., Relationship between orbital ionization energies and molecular properties. Proton affinities and photoelectron spectra of nitriles, J. Am. Chem. Soc., 1976, 98, 2081. [all data]

Sullivan, S.A.; Beauchamp, J.L., Competition between proton transfer and elimination in the reactions of strong bases with fluoroethanes in the gas phase. Influence of base strength on reactivity, J. Am. Chem. Soc., 1976, 98, 1160. [all data]

Williamson, A.D.; Beauchamp, J.L., Ion molecule reactions in vinyl fluoride by photoionization. Effects of vibrational excitation on major reaction pathways, J. Chem. Phys., 1976, 65, 3196. [all data]

Williamson, A.D.; LeBreton, P.R.; Beauchamp, J.L., Photoionization mass spectrometry of 2-fluoropropane and 2,2-difluoropropane. A novel determination of the proton affinity of vinyl fluoride and 1,1-difluoroethylene, J. Am. Chem. Soc., 1976, 98, 2705. [all data]

Armentrout, P.; Hodges, R.; Beauchamp, J.L., Metal atoms as superbases: The gas phase proton affinity of uranium, J. Am. Chem. Soc., 1977, 99, 3162. [all data]

Houle, F.A.; Beauchamp, J.L., The first ionization potential of ethyl radical by photoelectron spectroscopy, Chem. Phys. Lett., 1977, 48, 457. [all data]

Murphy, M.K.; Beauchamp, J.L., Photoionization mass spectrometry of the fluoromethylsilanes (CH3)n F4-nSi (n = 1-4), J. Am. Chem. Soc., 1977, 99, 2085. [all data]

Staley, R.H.; Wieting, R.D.; Beauchamp, J.L., Carbenium ion stabilities in the gas phase and solution. An ion cyclotron resonance study of bromide transfer reactions involving alkali ions, alkyl carbenium ions, acyl cations and cyclic halonium ions, J. Am. Chem. Soc., 1977, 99, 5964. [all data]

Houle, F.A.; Beauchamp, J.L., Detection and investigation of allyl and benzyl radicals by photoelectron spectroscopy, J. Am. Chem. Soc., 1978, 100, 3290. [all data]

Sullivan, S.A.; Beauchamp, J.L., Positive and negative ion chemistry of sulfuryl halides, Int. J. Mass Spectrom. Ion Phys., 1978, 28, 69. [all data]

Vogt, J.; Williamson, A.D.; Beauchamp, J.L., Properties and reactions of ketene in the gas phase by ion cyclotron resonance spectroscopy and photoionization mass spectrometry. Proton affinity, site specificity of protonation, and heat of formation of ketene, J. Am. Chem. Soc., 1978, 100, 3478. [all data]

Armentrout, P.B.; Beauchamp, J.L., Properties and reactions of uranium(IV) tetrahydroborate by ion cyclotron mass spectrometry, Inorg. Chem., 1979, 18, 1349. [all data]

Berman, D.W.; Anicich, V.; Beauchamp, J.L., Stabilities of isomeric halonium ions C2H4X+ (X = Cl, Br) by photoionization mass spectrometry iand on cyclotron resonance spectroscopy. General considerations of the relative stabilities of cyclic and acyclic isomeric onium ions, J. Am. Chem. Soc., 1979, 101, 1239. [all data]

George, P.M.; Beauchamp, J.L., The electron and fluoride affinites of tungsten hexafluoride by ICR spectroscopy, Chem. Phys., 1979, 36, 345. [all data]

Houle, F.A.; Beauchamp, J.L., Photoelectron spectroscopy of methyl, ethyl, isopropyl, and tert-butyl radicals. Implications for the thermochemistry and structures of the radicals and their corresponding carbonium ions, J. Am. Chem. Soc., 1979, 101, 4067. [all data]

Armentrout, P.B.; Beauchamp, J.L., Endothermic reactions of Ni+ with H2, HD and D2, Chem. Phys., 1980, 50, 37. [all data]

Hodges, R.V.; Houle, F.A.; Beauchamp, J.L.; Montag, R.A.; Verkade, J.G., Effects of molecular structure on basicity. Gas phase proton affinities of cyclic phosphites, J. Am. Chem. Soc., 1980, 102, 932. [all data]

Hodges, R.V.; McDonnell, T.J.; Beauchamp, J.L., Properties reactions of trimethyl phosphite, trimethyl phosphate, triethyl phosphate, and trimethyl phosphorothionate by ion cyclotron resonance spectroscopy, J. Am. Chem. Soc., 1980, 102, 1327. [all data]

Hodges, R.V.; Sullivan, S.A.; Beauchamp, J.L., Nucleophilic reactions of anions with trimethyl phosphate in the gas phase by ICR spectroscopy, J. Am. Chem. Soc., 1980, 102, 935. [all data]

Wight, C.A.; Beauchamp, J.L., Acidity, basicity, and ion/molecule reactions of isocyanic acid in the gas phase by ICR spectroscopy, J. Phys. Chem., 1980, 84, 2503. [all data]

Armentrout, P.B.; Beauchamp, J.L., Ion beam studies of the reactions of atomic cobalt ions with alkanes: Determination of metal-hydrogen and metal-carbon bond energies and an examination of the mechanism by which transition metals cleave carbon-carbon bonds, J. Am. Chem. Soc., 1981, 103, 784. [all data]

Armentrout, P.B.; Halle, L.F.; Beauchamp, J.L., Periodic trends in transition metal-hydrogen, metal-carbon, and metal-oxygen bond dissociation energies. Correlation with reactivity and electronic structure, J. Am. Chem. Soc., 1981, 103, 6501. [all data]

Berman, D.W.; Beauchamp, J.L.; Thorne, L.R., Ion cyclotron resonance and photoionization investigations of the thermochemistry and reactions of ions derived from CF3I, Int. J. Mass Spectrom. Ion Phys., 1981, 39, 47. [all data]

Berman, D.W.; Bomse, D.S.; Beauchamp, J.L., Photoionization threshold measurements for CF2 loss from perfluoropropylene, Perfluorocyclopropane, and trifluoromethylbenzene. The heat of formation of CF2 and the potential energy surface for C3F6 neutrals and ions, Int. J. Mass Spectrom. Ion Phys., 1981, 39, 263. [all data]

Halle, L.F.; Armentrout, P.B.; Beauchamp, J.L., Formation of chromium carbene ions by reaction of electronically excited chromium ions with methane in the gas phase, J. Am. Chem. Soc., 1981, 103, 962. [all data]

Wright, C.A.; Beauchamp, J.L., Infrared spectra of gas phase ions and their use in elucidating reaction mechanisms. Identification of C7H7- structural isomers by multiphoton electron detachment using a low-powered laser, J. Am. Chem. Soc., 1981, 103, 6499. [all data]

Armentrout, P.B.; Halle, L.F.; Beauchamp, J.L., 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, J. Chem. Phys., 1982, 76, 2449. [all data]

Bombach, R.; Dannacher, J.; Stadelmann, J.-P.; Vogt, J.; Thorne, L.R.; Beauchamp, J.L., Photoelectron-photoion coincidence study of CF3I. Implications for the CW IR laser multiphoton dissociation of CF3I+, Chem. Phys., 1982, 66, 403. [all data]

Halle, L.F.; Klein, F.S.; Beauchamp, J.L., Properties and reactions of organometallic fragments in the gas phase. Ion beam studies of FeH+, J. Am. Chem. Soc., 1984, 106, 2543. [all data]

Schultz, J.C.; Houle, F.A.; Beauchamp, J.L., Photoelectron spectroscopy of 1-propyl, 1-butyl, isobutyl, neopentyl and 2-butyl radicals: Free radical precursors to high energy carbonium ion isomers, J. Am. Chem. Soc., 1984, 106, 3917. [all data]

Schultz, J.C.; Houle, F.A.; Beauchamp, J.L., Photoelectron spectroscopy of isomeric C4H7 radicals. Implications for the thermochemistry and structures of the radicals and their corresponding carbonium ions, J. Am. Chem. Soc., 1984, 106, 7336. [all data]

Tolbert, M.A.; Beauchamp, J.L., Activation of carbon-hydrogen and carbon-carbon bonds by transition-metal ions in the gas phase. Exhibition of unique reactivity by scandium ions, J. Am. Chem. Soc., 1984, 106, 8117. [all data]

Hodges, R.V.; Beauchamp, J.L.; Ashe, A.J., III; Chan, W.-T., Proton affinities of pyridine, phosphabenzene and arsabenzene, Organometallics, 1985, 4, 457. [all data]

Simoes, J.A.M.; Schultz, J.C.; Beauchamp, J.L., Ion cyclotron resonance and photoelectron studies of the ionization energetics and thermochemical properties of Mn(CO)5(benzyl). Implications for the manganese-manganese bond strength in Mn2(CO)10, Organometallics, 1985, 4, 1238. [all data]

Hayashibara, K.; Kruppa, G.H.; Beauchamp, J.L., Photoelectron spectroscopy of the o-, m-, and p-methylbenzyl rRadicals. Implications for the thermochemistry of the radicals and ions, J. Am. Chem. Soc., 1986, 108, 5441. [all data]

Kruppa, G.H.; Beauchamp, J.L., Energetics and structure of the 1- and 2-adamantyl radicals and their corresponding carbonium ions by photoelectron spectroscopy, J. Am. Chem. Soc., 1986, 108, 2162. [all data]

Shin, S.K.; Beauchamp, J.L., Proton affinity and heat of formation of silylene, J. Phys. Chem., 1986, 90, 1507. [all data]

Shin, S.K.; Corderman, R.R.; Beauchamp, J.L., Photoionization mass spectrometric studies of the methylsilanes Si(CH3)nH4-n (n = 0-3), Int. J. Mass Spectrom. Ion Processes, 1990, 101, 257. [all data]

Nagano, Y.; Murthy, S.; Beauchamp, J.L., Thermochemical properties and gas-phase ion chemistry of phenylsilane investigated by FT-ICR spectrometry. Identification of parent- and fragment-ion structural isomers by their specific reactivities, J. Am. Chem. Soc., 1993, 115, 10805. [all data]

Campbell, S.; Marzluff, E.M.; Rodgers, M.T.; Beauchamp, J.L.; Rempe, M.E.; Schwinck, K.F.; Lichtenberger, D.L., 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, J. Am. Chem. Soc., 1994, 116, 5257. [all data]

Murthy, S.; Beauchamp, J.L., Fourier transform ion cyclotron resonance spectrometric studies of Lewis acid-base chemistry in monochlorosilane, J. Phys. Chem., 1995, 99, 9118. [all data]

Murphy, M.K.; Beauchamp, J.L., Fluorine and Alkyl Substituent Effects on Gas-Phase Lewis Acidities of Boranes by ICR Spectroscopy, Inorg. Chem., 1977, 16, 2437. [all data]

Bomse, D.S.; Berman, D.W.; Beauchamp, J.L., J. Am. Chem. Soc., 1981, 103, 3967. [all data]

Martinho-Simoes, J.A.; Beauchamp, J.L., Chem. Rev., 1986, 1. [all data]

Julian, R.R.; Beauchamp, J.L., The Unusually High Proton Affinity of Aza-18-Crown-6 Ether: Implications for the Molecular Recognition of Lysine in Peptides by Lariat Crown Ethers, J. Am. Soc. Mass Spectrom., 2002, 13, 493. [all data]

Beauchamp, J.L., PA of Betaine, 209th Natl. Meeting Am. Chem. Soc. Anaheim, CA, April 2-7, 1995, 1995. [all data]

Williamson, A.D.; LeBreton, P.R.; Beauchamp, J.L., Photoionization mass spectrometry of 2-fluoropropane and 2,2-difluoropropane. A novel determination of the proton affinity of vinyl fluoride and 1,1-difluoroethylene, J. Am. Chem. Soc., 1976, 98, 2705-2709. [all data]

Williamson, A.D.; Vogt, J.; Beauchamp, J.L., Effects of vibrational energy of the reactivity of ketene molecular ions by photoionization mass spectrometry, Chem. Phys. Lett., 1977, 47, 330-334. [all data]

Berman, D.W.; Bomse, D.S.; Beauchamp, J.L., Photoionization threshold measurements for CF2 loss from perfluoropropylene, perfluorocyclopropane, and trifluoromethylbenzene. The heat of formation of CF2 and consideration of the potential-energy surface for interconversion of isomeric C3F6 neutrals and ions, Int. J. Mass Spectrom. Ion Phys., 1981, 39, 263-271. [all data]

Bomse, D.S.; Berman, D.W.; Beauchamp, J.L., Energetics of the rearrangement of neutral and ionized perfluorocyclopropane to perfluoropropylene. Use of infrared multiphoton dissociation spectra to identify structural isomers of molecular ions, J. Am. Chem. Soc., 1981, 103, 3967-39. [all data]

Sullivan, S.A.; Beauchamp, J.L., Nucleophilic Reactions of Anions with PF3 and OPF3 in the Gas Phase by ICR Spectroscopy, Inorg. Chem., 1978, 17, 6, 1589, https://doi.org/10.1021/ic50184a039 . [all data]

Murphy, M.K.; Beauchamp, J.L., Methyl and Fluorine Substituent Effects on the Gas Phase Lewis Acidities of Silanes by ICR Spectroscopy, J. Am. Chem. Soc., 1977, 99, 15, 4992, https://doi.org/10.1021/ja00457a017 . [all data]

Stevens Miller, A.E.; Beauchamp, J.L., Gas-Phase Acidities of (CO)5MnH, (CO)4FeH2, and (CO)4CoH, J. Am. Chem. Soc., 1991, 113, 23, 8765, https://doi.org/10.1021/ja00023a024 . [all data]

Tolbert, M.A.; Beauchamp, J.L., Homolytic and Heterolytic Bond Dissociation Energies of the Second Row Group 8, 9, and 10 Diatomic Transition Metal Hydrides., J. Phys. Chem., 1986, 90, 21, 5015, https://doi.org/10.1021/j100412a029 . [all data]

Staley, R.H.; Beauchamp, J.L., Intrinsic Acid - Base Properties of Molecules. Binding Energies of Li+ to pi - and n - Donor Bases, J. Am. Chem. Soc., 1975, 97, 20, 5920, https://doi.org/10.1021/ja00853a050 . [all data]

Corderman, R.R.; Beauchamp, J.L., Qauntitative Metal-Ligand Bond Dissociation Energies in the Gas Phase by Ion Cyclotron Resonance Spectroscopy, J. Am. Chem. Soc., 1976, 98, 13, 3998, https://doi.org/10.1021/ja00429a044 . [all data]

Wolf, J.F.; Staley, R.H.; Koppel, I.; Taagepera, M.; McIver, R.T.; Beauchamp, J.L.; Taft, R.W., Gas Phase Basicities and Relative Proton Affinities of Compounds Between Water and Ammonia from Pulsed Ion Cyclotron Resonance Thermal Equilibria Measurements, J. Am. Chem. Soc., 1977, 99, 16, 5417, https://doi.org/10.1021/ja00458a032 . [all data]

Woodin, R.L.; Beauchamp, J.L., Bonding of Li+ to Lewis Bases in the Gas Phase. Reversals in Methyl Substituent Effects for Different Reference Acids, J. Am. Chem. Soc., 1978, 100, 2, 501, https://doi.org/10.1021/ja00470a024 . [all data]

Berman, D.W.; Beauchamp, J.L., A Novel Bimolecular Reaction Sequence Yielding H(OH2)2+ at Low Pressures. Ion Cyclotron Resonance Studies of the Reaction of Doubly Solvated Protons, J. Phys. Chem., 1980, 84, 18, 2233, https://doi.org/10.1021/j100455a004 . [all data]

Bomse, D.S.; Beauchamp, J.L., Slow Multiphoton Excitation as a Probe of Bimolecular and Unimolecular Reaction Energetics. Multiphoton Dissociation of Proton-Bound Alcohol Dimers, J. Am. Chem. Soc., 1981, 103, 12, 3292, https://doi.org/10.1021/ja00402a011 . [all data]

Berman, D.W.; Beauchamp, J.L., Quoted in missing citation, 1986. [all data]

Dearden, D.V.; Hayashibara, K.; Beauchamp, J.L.; Kirschner, N.J.; Van Koppen, P.A.M.; Bowers, M.T., Fundamental Studies of the Energetics and Dynamics of Ligand Dissociation and Exchange Processes at Transition - Metal Centers in the Gas Phase: Mn(COx)+, x = 1 - 6, J. Am. Chem. Soc., 1989, 111, 7, 2401, https://doi.org/10.1021/ja00189a005 . [all data]

Freiser, B.S.; Beauchamp, J.L., Photochemistry of organic ions in the gas phase. Comparison of the gas phase photodissociation and solution absorption spectra of benzoyl cation, protonated benzene, and protonated mesitylene, J. Am. Chem. Soc., 1976, 98, 11, 3136, https://doi.org/10.1021/ja00427a012 . [all data]

Freiser, B.S.; Beauchamp, J.L., Acid-base properties of molecules in excited electronic states utilizing ion cyclotron resonance spectroscopy, J. Am. Chem. Soc., 1977, 99, 10, 3214, https://doi.org/10.1021/ja00452a003 . [all data]

Wight, C.A.; Beauchamp, J.L., Multiphoton electron detachment studies of C7H7- using a low-power infrared laser. Competition of radiative and collisional relaxation with vibrational excitation, Chem. Phys., 1989, 134, 2-3, 375, https://doi.org/10.1016/0301-0104(89)87169-1 . [all data]

Sullivan, S.A.; Freiser, B.S.; Beauchamp, J.L., Gas phase photodissociation spectrum of Cl2-, Chem. Phys. Lett., 1977, 48, 294-298. [all data]

Tolbert, M.A.; Beauchamp, J.L., Homolytic and heterolytic bond dissociation energies of the second row group 8, 9, and 10 diatomic transition-metal hydrides: correlation with electronic structure, J. Phys. Chem., 1986, 90, 5015-5022. [all data]

Irikura, K.K.; Goddard, W.A., III; Beauchamp, J.L., Prospects for the involvement of transition metals in the chemistry of diffuse interstellar clouds: formation of FeH+ by radiative association, Int. J. Mass Spectrom. Ion Processes, 1990, 99, 213-222. [all data]

Martinho Simões, J.A.; Beauchamp, J.L., Chem. Rev., 1990, 90, 629. [all data]

Martinho Simões, J.A.; Schultz, J.C.; Beauchamp, J.L., Organometallics, 1985, 4, 1238. [all data]

Miller, A.E.S.; Beauchamp, J.L., J. Am. Chem. Soc., 1991, 113, 8765. [all data]

Shin, S.K.; Goddard, W.A.; Beauchamp, J.L., J. Phys. Chem., 1990, 94, 6963. [all data]

Kruppa, G.H.; Hayashibara, K.; Beauchamp, J.L., J. Am. Chem. Soc., 1986, 108, 5441. [all data]

Stratton, T.G.; Cole, B.E.; Kruse, P.W.; Wood, R.A.; Beauchamp, K.; Wang, T.F.; Johnson, B.; Goldman, A.M., High-temperature superconducting microbolometer, Appl. Phys. Lett., 1990, 57, 99-100. [all data]

Adams, R.P.; Beauchamp, P.S.; Dev, V.; Dutz, S.M., New Natural Products Isolated from One-Seeded Juniperus of the Southwestern United States: Isolation and Occurence of 2-Ethenyl-3-methyl Phanol and Its Derivatives, J. Essent. Oil Res., 2007, 19, 2, 146-152, https://doi.org/10.1080/10412905.2007.9699247 . [all data]

Melkani, A.B.; Beauchamp, P.S.; Dev, V.; Whalen, C.; Mathela, C.S., Rosefuran Epoxide from Elsholtzia densa Benth., J. Essent. Oil Res., 1994, 6, 5, 475-479, https://doi.org/10.1080/10412905.1994.9698429 . [all data]

Asuming, W.A.; Beauchamp, P.S.; Descalzo, J.T.; Dev, B.C.; Dev, V.; Frost, S.; Ma, C.W., Essential oil composition of four Lomatium Raf. species and their chemotaxonomy, Biochem. Syst. Ecol., 2005, 33, 1, 17-26, https://doi.org/10.1016/j.bse.2004.06.005 . [all data]

Melkani, A.B.; Dev, V.; Beauchamp, P.S.; Negi, A.; Mehta, S.P.S.; Melkani, K.B., Constituents of the essential oil of a new chemotype of Elsholtzia strobilifera Benth., Biochem. Syst. Ecol., 2005, 33, 4, 419-425, https://doi.org/10.1016/j.bse.2004.10.009 . [all data]