Zobrazeno 1 - 10
of 127
pro vyhledávání: '"F. P. Lossing"'
Autor:
John L. Holmes, M. C. Blanchette, Paul J.A. Ruttink, Johan K. Terlouw, R. Postma, Cornelis E. C. A. Hop, F. P. Lossing
Publikováno v:
Journal of the American Chemical Society. 108(24)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33a08aec5061791145e766e5d57c6faf
https://pubmed.ncbi.nlm.nih.gov/22283262
https://pubmed.ncbi.nlm.nih.gov/22283262
Publikováno v:
Chemical Physics Letters. 212:134-140
Energy-resolved electron impact appearance energy (AE) measurements were performed to determine the heat of formation of the cyanomethyl radical and cation as well as the ionization energy (IE) of the methyl substituted analogues, CH3ĊHCN and (CH3)2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::623c3424abcfc441605e00a6af966932
https://doi.org/10.1016/0009-2614(93)87121-i
https://doi.org/10.1016/0009-2614(93)87121-i
Publikováno v:
Canadian journal of research. 25(4)
A direct action shunt selector has been designed that pre-selects the appropriate shunt so that widely different mass spectrometer ion currents can be recorded linearly on a standard chart. In conjunction with a linear direct current amplifier and a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bcab4da8791deac86f4af50b175173f
https://pubmed.ncbi.nlm.nih.gov/20264573
https://pubmed.ncbi.nlm.nih.gov/20264573
Publikováno v:
Journal of the American Chemical Society. 113:9723-9728
The present work centers on the heat of formation and bond strengths at 298K of hydroxy-substitued alkyl radicals, which, for the most part, are unknown.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::932e98f62ae0b0e28615d0de46e2d99c
https://doi.org/10.1021/ja00026a002
https://doi.org/10.1021/ja00026a002
Autor:
John L. Holmes, F. P. Lossing
Publikováno v:
Organic Mass Spectrometry. 26:537-541
The empirical relationship IE ∝ 1/n, between the ionization energy (IE) and molecular size (as represented by the number of atoms, n) in homologous series of organic compounds has been confirmed for n-alkanes, alkyl halides, cyclic ethers and alkyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b14e58708a55e2129f4d5fe77f0965b4
https://doi.org/10.1002/oms.1210260603
https://doi.org/10.1002/oms.1210260603
Publikováno v:
Chemical Physics Letters. 198:211-213
Energy-resolved electron impact was used to measure the appearance energy of CH 2 NH + from azetidine and propargylamine and the adiabatic ionization energy of CH 2 NH formed in the pyrolysis of azetidine. The heats of formation of CH 2 NH and CH 2 N
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30133486fe4c6af2e5700e05d62fcabd
https://doi.org/10.1016/0009-2614(92)90074-w
https://doi.org/10.1016/0009-2614(92)90074-w
Publikováno v:
Canadian Journal of Chemistry. 59:80-93
It is shown that gas-phase heats of formation of homologous odd-electron organic cations can be well represented by an equation of the form ΔHf[ion]+• = A − Bn + C/n, where A, B, and C are constants and n is the total number of atoms in the mole
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd0bcdeee0809fe03581bfd8982ed100
https://doi.org/10.1139/v81-014
https://doi.org/10.1139/v81-014
Publikováno v:
International Journal of Mass Spectrometry and Ion Processes. 86:209-215
The heats of formation, ΔH0f, of a series of halogen-substituted alkyl ions have been determined by appearance energy measurements with energy selected electrons. Halogen substitution at the formal charge site significantly reduces the heterolytic b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cf16d8ccdfb336455204d9b0cf3900d
https://doi.org/10.1016/0168-1176(88)80065-x
https://doi.org/10.1016/0168-1176(88)80065-x
Autor:
F. P. Lossing, John L. Holmes
Publikováno v:
Canadian Journal of Chemistry. 57:249-252
The loss of halogen atom from the molecular ions of compounds of formulae C3H3Cl and C3H3Br produces the cyclopropenium cation as daughter ion. Each reaction takes place with appreciable reverse activation energy, most of which is partitioned into tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c646008ec1a3834ac1691ee4eb30a23
https://doi.org/10.1139/v79-041
https://doi.org/10.1139/v79-041
Autor:
John L. Holmes, F. P. Lossing
Publikováno v:
Canadian Journal of Chemistry. 60:2365-2371
The effects on ionic heats of formation of the multiple substitution of -CH3, -OH, or -OCH3 groups, in place of H atoms, are described. It is shown that for all three substituents, good linear correlations exist between ΔHf(ion) and the logarithm of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0797509ffd163136c551f26448c48d06
https://doi.org/10.1139/v82-338
https://doi.org/10.1139/v82-338