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Negative ion mass spectrometry—I: The spectra of some stabilised alkylidenetriphenyl‐phosphoranes
Author(s) -
Alexander R. G.,
Bigley D. B.,
Todd J. F. J.
Publication year - 1973
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.1210070806
Subject(s) - fragmentation (computing) , mass spectrum , chemistry , ion , mass spectrometry , spectral line , polyatomic ion , analytical chemistry (journal) , organic chemistry , chromatography , physics , astronomy , computer science , operating system
The 70 eV negative ion mass spectra of a series of phosphoranes exhibit significant peaks for ions resulting from skeletal rearrangements. The primary fragmentation reactions of the molecular anions, which involve reduction of the phosphorus from the penta‐ to the ter‐valent state, have been rationalised in terms of the relative stabilities of the products formed. The processes occurring are in some cases analogous to and in other cases complementary to, those previously observed in the positive ion spectra of similar compounds.