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Pyrolysis and mass spectra of some aromatic‐imides
Author(s) -
Cotter J. L.,
DineHart R. A.
Publication year - 1968
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.1210010617
Subject(s) - pyrolysis , fragmentation (computing) , mass spectrum , electron ionization , chemistry , thermal decomposition , spectral line , decomposition , mass spectrometry , analytical chemistry (journal) , photochemistry , organic chemistry , ion , chromatography , physics , astronomy , computer science , ionization , operating system
The electron‐impact induced loss of CO 2 from phthalanil and 4‐phthalimidobiphenyl is paralleled by the formation of large amounts of CO 2 on pyrolysis. CO is also a major pyrolysis product, but the loss of CO from these compounds under electron‐impact is not an important fragmentation process. The mass spectra of meta and para ‐chlorophthalanils show prominent [M CO 2 ] peaks but the corresponding peak for the ortho isomer is of relatively low intensity. CO and CO 2 are the principal gaseous products of the thermal decomposition of o ‐chlorophthalanil.