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Fragmentation in doubly charged ion mass spectra of anhydropisatin and related compounds
Author(s) -
Eguchi Shizuko,
Nakayama Mitsuru,
Hayashi Shûichi
Publication year - 1976
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.1210110604
Subject(s) - fragmentation (computing) , mass spectrum , spectral line , ion , electron ionization , chemistry , electron , atomic physics , analytical chemistry (journal) , physics , ionization , nuclear physics , chromatography , organic chemistry , astronomy , computer science , operating system
The doubly charged ion mass spectra of anhydropisatin, 4‐methoxyanhydropisatin, 3, 8, 9‐trimethoxypterocarpen and 3, 4, 8, 9‐tetramethoxypterocarpen were determined, and the fragmentation was explained by assuming that the paired electrons were partially localized in the fragmentations and by comparing the spectra with that of 3‐(CD 3 )‐anhydropisatin. Conventional mass spectra of these compounds were very simple, but the doubly charged ion spectra were sufficiently characteristic for the reliable identification.