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Ionization and dissociation of some pyromellitimides under electron‐impact
Author(s) -
Cotter J. L.,
DineHart R. A.
Publication year - 1970
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.1210040134
Subject(s) - electron ionization , ion , mass spectrum , dissociation (chemistry) , ionization , polyatomic ion , spectral line , electron , mass spectrometry , chemistry , chemical ionization , atomic physics , physics , organic chemistry , nuclear physics , chromatography , astronomy
The mass spectra of twenty three pyromellitimides are reported and discussed. Proposed ion structures are, in most cases, substantiated by precise mass measurement. All compounds examined exhibit molecular‐ions. Ions formed by the loss of carbon dioxide from the molecular‐ions, although intense in some cases, are not common to all the spectra.