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Mass fragmentographic studies of sulfur compounds: The thienylthiaalkanes
Author(s) -
Foster Norman G.,
Shiu Diana WongKiu,
Higgins Robert W.
Publication year - 1974
Publication title -
biomedical mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0306-042X
DOI - 10.1002/bms.1200010502
Subject(s) - fragmentation (computing) , mass spectrum , chemistry , ion , sulfur , electron ionization , alkyl , polyatomic ion , mass spectrometry , ionization , spectral line , medicinal chemistry , organic chemistry , chromatography , physics , astronomy , computer science , operating system
Fragmentation studies of the mass spectra of 24 high purity compounds of importance in a study of fossil fuels are described. The substances include eleven 1‐(2‐thienyl)‐1‐thia‐, six1‐(2‐thienyl)‐3‐thia, and seven1‐(2‐thienyl)‐4‐thiaalkanes in the molecular weight range 158 to 270. Rearrangement peaks are prominent in all spectra and form the base peaks for the 1‐thia‐ and 4‐thia‐ compounds. The 3‐thia‐ compounds are somewhat perverse in exhibiting weaker rearrangement peaks, and large ion intensities, including base peaks, at masses typical of alkyl fragments, alkenyl fragments, or ions more characteristic of the thiaalkanes (aliphatic sulfides). The major fragment ions are discussed and their use in differentiating subclasses is described. Low ionization voltage data is presented in support of suggested mechanisms of fragmentation.