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[C] + · and [CH] + from doubly charged ions formed from malononitrile
Author(s) -
Bey J. H.,
Caprioli R. M.,
Cooks R. G.,
Nibbering N. M. M.,
MolenaarLangeveld T. A.
Publication year - 1975
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.1210101003
Subject(s) - malononitrile , nitrile , methylene , ion , metastability , chemistry , carbon fibers , medicinal chemistry , materials science , organic chemistry , catalysis , composite number , composite material
The metastable ions [M] 2+ , [M – H] 2+ · and [M – H 2 ] 2+ from malononitrile fragment by loss of [CH] + , [C] + · and [C] + ·, respectively. The reaction of the molecular ion involves the methylene and nitrile carbon atoms in the statistical probability ratio, while that of [M – H] 2+ · involves exclusively the nitrile carbon and that of [M H 2 ] 2+ involves an approximately equal contribution, from both sources. It is suggested that the metastable molecular ion fragments through a bipyrimidal intermediate.
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