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The mass spectra of phenothiaphosphine derivatives
Author(s) -
Granoth I.,
Kalir A.,
Pelah Z.,
Bergmann E. D.
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.1210031103
Subject(s) - fragmentation (computing) , phosphine , mass spectrum , chemistry , aryl , ring (chemistry) , polyatomic ion , phosphorus , ion , medicinal chemistry , atom (system on chip) , stereochemistry , organic chemistry , catalysis , alkyl , embedded system , computer science , operating system
The molecular ion of the phenothiaphosphine derivatives is fairly stable. Under electronimpact, the phenothiaphosphines (I) and phenothiaphosphinic acids (IV, R = H) undergo a one‐step elimination of the phosphorus atom together with the groups attached to it. Substitutents in the aromatic rings, as well as on the phosphorus, influence the fragmentation pattern; ring methyl, e.g. leads to tropylium structures. Phosphine oxides of type V lose RO˙, probably after a rearrangement, when R = aryl, but R˙ if it is methyl.