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Ammonia chemical ionization mass spectra of esters and amides of oxyacids of phosphorus
Author(s) -
Cload P. A.,
Hutchinson D. W.
Publication year - 1983
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.1210180204
Subject(s) - mass spectrum , electron ionization , chemical ionization , protonation , chemistry , fragmentation (computing) , ion , mass spectrometry , reagent , ammonia , polyatomic ion , ionization , inorganic chemistry , molecule , organic chemistry , chromatography , computer science , operating system
Abstract Chemical ionization mass spectrometry using ammonia as the reagent gas has been carried out with esters and amides of a variety of oxyacids of phosphorus (phosphates, phosphonates, phosphites and phosphoramidates). In all cases, the protonated molecular ion is a major species in the spectrum and the percentage of the total ion current carried by these protonated molecular ions is always considerably greater than that carried by the molecular ions in the corresponding electron impact mass spectra. In the chemical ionization mass spectra only limited fragmentation of the protonated molecular ion occurs from which useful information on the structure of phosphorus derivatives may be inferred.