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Isomeric [C 3 H 4 ] +· ions: Their identification and generation in dissociative ionizations
Author(s) -
Mommers A. A.,
Burgers P. C.,
Holmes J. L.,
Terlouw J. K.
Publication year - 1984
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.1210190103
Subject(s) - ion , chemistry , mass spectrum , isomerization , dissociation (chemistry) , propyne , spectral line , cyclopropene , analytical chemistry (journal) , atomic physics , photochemistry , medicinal chemistry , physics , catalysis , organic chemistry , astronomy
The collisional activation (CA) and charge stripping (CS) mass spectra of the three [C 3 H 4 ] +· isomers, allene, propyne and cyclopropene, are reported. The extent of isomerization among these ions prior to collisional excitation depends on their internal energy content, but is small. Each [C 3 H 4 ] +· ion structure also can uniquely be generated via appropriate dissociative ionizations. Analysis of mixtures of [C 3 H 4 ] +· (daughter) ion structures is, in general, not possible from CA and CS mass spectra alone but may be aided by appearance energy measurements.