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A study of the structures of decomposing and non‐decomposing [C 4 H 5 N] +˙ ions formed from different neutral species
Author(s) -
Sakurai H.,
Jennings K. R.
Publication year - 1981
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.1210160906
Subject(s) - ion , cyanide , fragmentation (computing) , chemistry , metastability , isocyanide , pyrrole , decomposition , crystallography , stereochemistry , inorganic chemistry , organic chemistry , computer science , operating system
[C 4 H 5 N] +˙ ions have been generated from eleven neutral species. From a study of their metastable transitions and the translational energy released in the fragmentation in which C 2 H 2 is lost, it is concluded that [C 4 H 5 N] +˙ ions with sufficient energy to decompose do so from a common structure or mixture of structures when they are generated from crotonitrile, allyl cyanide, cyclopropyl cyanide, methacrylontrile, pyrrole, 2‐, 3‐ and 4‐hydroxypyridines and 2‐aminopyridine. The [C 4 H 5 N] +˙ ions formed from allyl isocyanide decompose from a different structure and those given by cyclopropyl isocyanide appear to decompose from a mixture of the two structures. Non‐decomposing [C 4 H 5 N] +˙ ions were investigated by means of their collision induced decomposition spectra using a B / E linked scan. Six different structures or mixtures of structures are suggested to explain these observations.