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On the unimolecular loss of acetylene from metastable C 11 H 9 ] + ions
Author(s) -
My Nguyen Kieu,
Schwarz Helmut
Publication year - 1987
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.1210220504
Subject(s) - acetylene , metastability , ion , chemistry , kinetic energy , scrambling , spectral line , carbon fibers , mass spectrum , atomic physics , analytical chemistry (journal) , physics , materials science , organic chemistry , linguistics , philosophy , quantum mechanics , astronomy , composite number , composite material
Extensive 13 C labelling experiments demonstrate that loss of acetylene from metastable [C 11 H 9 ] + ions is a complex process, which can be described quantitatively in terms of a four‐parameter model. The major reaction path (77.8%) involves scrambling of all 11 carbon atoms. Insight into the reaction details is provided neither by the kinetic energy release associated with the reaction [C 11 H 9 ] + → [C 9 H 7 ] + + C 2 H 2 nor by the analysis of the collisional activation mass spectra of the resulting [C 9 H 7 ] + ions.
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