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Competing metastable transitions of the [C 7 H 6 F] + ion
Author(s) -
Jennings K. R.,
Whiting Alan
Publication year - 1972
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.1210060812
Subject(s) - metastability , ion , fragmentation (computing) , atomic physics , intensity (physics) , chemistry , analytical chemistry (journal) , physics , optics , organic chemistry , chromatography , computer science , operating system
Metastable transitions arising from the loss of C 2 H 2 and HF from the [C 7 H 6 F] + ion have been investigated. Under standard operating conditions, the intensity ratio of the metastable peaks was approximately independent of the precursor of the [C 7 H 6 F] + ion, indicating fragmentation from a common structure such as the symmetrical fluorotropylium ion. The variation of the intensity ratio with several instrumental parameters suggests that I (C 2 H 2 loss)/ I (HF loss) rises as the internal energy of the [C 7 H 6 F] + ion falls. Possible interference from discrimination effects at the β‐slit when comparing intensity ratios for first and second field free region are discussed.