Ammonia Chemical Ionization Mass Spectra of Sydnones

Autor:	Ling-Ling Tien, Shaw-Tao Lin
Rok vydání:	1990
Předmět:	chemistry.chemical_classification Ammonia chemistry.chemical_compound Chemical ionization chemistry Base (chemistry) Reagent Analytical chemistry Mass spectrum Protonation General Chemistry Spectral line Ion
Zdroj:	Journal of the Chinese Chemical Society. 37:95-99
ISSN:	0009-4536
DOI:	10.1002/jccs.199000014
Popis:	The mass spectra of twenty-nine sydnones were measured by using NII3 as a reagent gas. The [M + H + NH3]+ 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 NH3 CI-MS can be an excellent method for the molecular weight determination.
Databáze:	OpenAIRE
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