Search Results - "Trikoupis, Moschoula A."

Enolization of Gaseous Acetone Radical Cations:  Catalysis by a Single Base Molecule by Trikoupis, Moschoula A, Terlouw, Johan K, Burgers, Peter C

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How do dimethyl oxalate ions CH3O-C(=O)-C(=O)-OCH3·+ break in half? Loss of CH3· + CO2 versus CH3O-C-O by Trikoupis, Moschoula A, Terlouw, Johan K, Burgers, Peter C, Peres, Menechem, Lifshitz, Chava

“…The interesting unimolecular dissociation chemistry of dimethyl oxalate (DMO) ions, CH^sub 3^O-C(=O)-C(=O)-OCH^sub 3^^sup ·+^, has been studied by vacuum…”
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Catalysis in Hydrogen-Bridged Radical Cations by Jobst, Karl J., Trikoupis, Moschoula A.

“…Hydrogen-bridged radical cations (HBRCs) are an intriguing subclass of ion–molecule complexes. They may act as key intermediates of remarkable stability in…”
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Derivatization of small oligosaccharides prior to analysis by matrix-assisted laser desorption/ionization using glycidyltrimethylammonium chloride and Girard's reagent T by Gouw, Joost W., Burgers, Peter C., Trikoupis, Moschoula A., Terlouw, Johan K.

“…In matrix‐assisted laser desorption/ionization (MALDI) analyses of small oligosaccharides a very large increase in sensitivity (by a factor of 1000) may be…”
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Self-catalysis in the gas-phase: enolization of the acetone radical cation by Trikoupis, Moschoula A., Burgers, Peter C., Ruttink, Paul J.A., Terlouw, Johan K.

“…Because of a prohibitively large barrier, the solitary acetone radical cation, CH 3C(O)CH 3 + ( 1 +) does not rearrange, neither spontaneously nor by…”
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Hydrogen-shift isomers of ionic and neutral hydroxypyridines: a combined experimental and computational investigation by Trikoupis, Moschoula A, Gerbaux, Pascal, Lavorato, David J, Flammang, Robert, Terlouw, Johan K

“…Apart from pyridine N-oxide ( 1a), the C 5H 5NO family of stable molecules comprises, 2-, 3- and 4-hydroxypyridine ( 2a, 3a and 4a) as well as their keto…”
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The heat of formation of sulfine, CH2=S=O, revisited : a CBS-QB3 study by RUTTINK, Paul J. A, BURGERS, Peter C, TRIKOUPIS, Moschoula A, TERLOUW, Johan K

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Dissociation chemistry of the hydrogen-bridged radical cation [CH 2O ⋯ H ⋯ OC–OCH 3] ·+: proton transport catalysis and charge transfer by Fell, Lorne M, Ruttink, Paul J.A, Burgers, Peter C, Trikoupis, Moschoula A, Terlouw, Johan K

“…Tandem mass spectrometry based experiments on the decarbonylation products of ionized methyl-β-hydroxypyruvate (MHP) and dimethyloxalate (DMO) show that the…”
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Effect of variations of the size and structure of the principal alkyl group on alkene elimination from the immonium ions CH3CH2CHN+(CH3)R, CH3CH2CH2CHN+(CH3)R and CH3CH2CH2CH2CHN+(CH3)R by Mandeville, Simon J, Bowen, Richard D, Trikoupis, Moschoula A, Terlouw, Johan K

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Benzonitrile assisted enolization of the acetone and acetamide radical cations: proton-transport catalysis versus an intermolecular H +/· transfer mechanism by Trikoupis, Moschoula A., Burgers, Peter C., Ruttink, Paul J.A., Terlouwa, Johan K.

“…The acetamide radical cation, CH 3C(O)NH 2 ·+, can be induced to rearrange into its more stable enol isomer, CH 2C(OH)NH 2 ·+, by an ion–molecule interaction…”
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The Decarbonylation of the Acetamide Radical Cation and the Enolization of its Dimer by Self-Catalysis by Trikoupis, Moschoula A., Ruttink, Paul J.A., Burgers, Peter C., Terlouw, Johan K.

“…The acetamide radical cation, CH3C(=O)NH2•+, and its enol, CH2=C(OH)NH2•+, undergo several unimolecular reactions in the μs time-frame of which decarbonylation…”
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The heat of formation of sulfine, CH 2SO, revisited: a CBS-QB3 study by Ruttink, Paul J.A., Burgers, Peter C., Trikoupis, Moschoula A., Terlouw, Johan K.

“…The heat of formation ( ΔH f) of sulfine, CH 2SO, has been determined by the CBS-QB3 quantum chemical method, using 10 reactions, including the isodesmic…”
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Reactions of ionised methyl pent-4-enyl ether, CH2=CH(CH2)3OCH3 by Bowen, Richard D., Mandeville, Simon J., Trikoupis, Moschoula A., Terlouw, Johan K.

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Dissociation Reactions of Low-Energy Pentenyl Methyl Ether Radical Cations C5H9OCH3 by Bowen, Richard D., Trikoupis, Moschoula A., Terlouw, Johan K.

“…The dissociation chemistry of the low-energy C5H9OCH3•+ ions generated from the 13 isomeric pentenyl methyl ethers derived from stable alkenols has been…”
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Reactions of ionised methyl pent-4-enyl ether, CH 2CH(CH 2) 3OCH 3 by Bowen, Richard D., Mandeville, Simon J., Trikoupis, Moschoula A., Terlouw, Johan K.

“…The reactions of CH 2CH(CH 2) 3OCH 3 ·+ are reported and discussed, with particular emphasis on the behaviour of the metastable ions. The main reactions of…”
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Dissociation Reactions of Low-Energy Pentenyl Methyl Ether Radical Cations C 5 H 9 OCH 3 by Bowen, Richard D., Trikoupis, Moschoula A., Terlouw, Johan K.

“…The dissociation chemistry of the low-energy C 5 H 9 OCH 3 •+ ions generated from the 13 isomeric pentenyl methyl ethers derived from stable alkenols has been…”
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Characterization of iminothiosulfine-type ions [HNCS 2] [rad]+/ [rad]− and their neutral counterparts by mass spectrometry and computational chemistry by Vivekananda, S., Raghunath, P., Bhanuprakash, K., Srinivas, R., Trikoupis, Moschoula A., Terlouw, Johan K.

“…Electron ionization of rhodanine yields iminothiosulfine ions H– N C– S– S + , 1b + , which readily communicate with the higher energy cyclic isomer H– N CS…”
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Effect of variations of the size and structure of the principal alkyl group on alkene elimination from the immonium ions CH 3CH 2CHN +(CH 3)R, CH 3CH 2CH 2CHN +(CH 3)R and CH 3CH 2CH 2CH 2CHN +(CH 3)R by Mandeville, Simon J, Bowen, Richard D, Trikoupis, Moschoula A, Terlouw, Johan K

“…The reactions of three homologous series of metastable immonium ions of general structure, CH 3(CH 2) m CHN +(CH 3)R, [ m = 1–3; R = n-C n H 2 n+1 , n = 1–10,…”
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How do dimethyl oxalate ions CH 3 O-C(=O)-C(=O)-OCH 3 ·+ break in half? Loss of CH 3 · + CO 2 versus CH 3 O-C-O by Trikoupis, Moschoula A., Terlouw, Johan K., Burgers, Peter C., Peres, Menechem, Lifshitz, Chava

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How do dimethyl oxalate ions CH 3O–C(O)–C(O)–OCH 3·+ break in half? Loss of CH 3· + CO 2 Versus CH 3O–CO by Trikoupis, Moschoula A., Terlouw, Johan K., Burgers, Peter C., Peres, Menechem, Lifshitz, Chava

“…The interesting unimolecular dissociation chemistry of dimethyl oxalate (DMO) ions, CH 3O–C(O)–C(O)–OCH 3 ·+, has been studied by vacuum ultraviolet…”
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