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Ammonia Chemical Ionization Mass Spectra of Sydnones
Author(s) -
Lin ShawTao,
Tien LingLing
Publication year - 1990
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199000014
Subject(s) - chemistry , mass spectrum , chemical ionization , ion , reagent , methylene , ammonia , base (topology) , ionization , spectral line , analytical chemistry (journal) , mass spectrometry , polyatomic ion , medicinal chemistry , organic chemistry , chromatography , mathematical analysis , physics , mathematics , astronomy
The mass spectra of twenty‐nine sydnones were measured by using NII 3 as a reagent gas. The [M + H + NH 3 ] + ions are the base peaks for the entire series. Very few fragment ions were observed except for the derivatives of 4‐hydroxymethylenesydnones (XXI‐XXIX). Only the relatively stable sydnonyl‐methylene cations are formed. With consistent formation of [M + 18] + ion as the base peaks with simple spectra, the NH 3 CI‐MS can be an excellent method for the molecular weight determination.