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The effect of ortho substitution on the mass spectral fragmentation of polychlorinated biphenyls
Author(s) -
Levy Louis A.,
Oswald Edward O.
Publication year - 1976
Publication title -
biomedical mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0306-042X
DOI - 10.1002/bms.1200030209
Subject(s) - fragmentation (computing) , chemistry , mass spectrum , rationalization (economics) , yield (engineering) , medicinal chemistry , mass spectrometry , materials science , chromatography , philosophy , epistemology , computer science , metallurgy , operating system
Isomeric chlorinated biphenyls are observed to yield very similar mass spectra, rarely exhibiting a [M Cl] + fragment of any siVgnificant magnitude. However, those isomers containing three ortho chloro substituents display a relatively intense [M Cl] + fragment. A rationalization for this observation is put forth on the basis of the relative stabilities of both product and reactant.