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The mass spectra of carboxylic acids—VI: Metastable dissociations of isomeric ions in the mass spectra of oxalic and formic acids, and malonic and acetic acids
Author(s) -
Holmes J. L.
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.1210070313
Subject(s) - oxalic acid , chemistry , ion , mass spectrum , formic acid , metastability , spectral line , malonic acid , acetic acid , medicinal chemistry , inorganic chemistry , analytical chemistry (journal) , organic chemistry , physics , astronomy
Metastable ion peak shapes and abundances have been studied for competing dissociations of the [H 2 CO 2 ] +. ions produced in the mass spectra of formic and oxalic acids, and of [H 4 C 2 O 2 ] +. ions produced from acetic and malonic acids. It is concluded that for each pair ions different with respect to structure and energy content are present; the difference is more apparent in the [H 4 C 2 O 2 ] +. ions than in the smaller [H 2 CO 2 ] +. species.