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Mass and kinetic energy spectrometries of alkylketenes
Author(s) -
Maquestiau A.,
Flammang R.,
Pauwels P.
Publication year - 1983
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.1210181211
Subject(s) - ketene , chemistry , mass spectrometry , ion , kinetic energy , decarbonylation , metastability , fragmentation (computing) , thermal decomposition , decomposition , analytical chemistry (journal) , photochemistry , organic chemistry , physics , chromatography , quantum mechanics , computer science , operating system , catalysis
Real‐time analysis of alkylketenes synthesized by flash vacuum thermolysis (FVT) of acid chlorides has been performed by mass spectrometric techniques using a triple sector ( E/B/E ) spectrometer. The major high energy reactions of the molecular ions consist of β‐cleavages relative to the CC bond of the ketene function, followed by decarbonylation. The unimolecular reactions of the metastable molecular ions are often different as shown by collisional activation of the fragment ions produced in a field‐free region of the spectrometer and also from estimated heats of formation.