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Sensitivity of charge transfer reactions to hydrocarbon ion structures
Author(s) -
Shields G. C.,
Wennberg L.,
Wilcox J. B.,
Moran T. F.
Publication year - 1986
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210210308
Subject(s) - ion , chemistry , hydrocarbon , molecule , ionization , electron transfer , charge (physics) , molecular orbital , electron , atomic physics , electron ionization , recombination , field desorption , photochemistry , physics , organic chemistry , biochemistry , quantum mechanics , gene
Charge transfer reactivities of hydrocarbon ions have been measured with time‐of‐flight techniques, and results correlated with theoretical structures computed by self‐consistent field molecular orbital methods. Recombination energies, ion structures, heats of formation, reaction energetics and relative charge transfer cross‐sections are presented for molecular and fragment ions produced by electron bombardment ionization of CH 4 , C 2 H 4 , C 2 H 6 , C 3 H 8 and C 4 H 10 molecules. Even‐electron bridged cations have low ion recombination energies and relatively low charge transfer cross‐sections as compared with odd‐electron hydrocarbon cations.