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The elimination of carbon monoxide from molecular ions of phenol and other [C 6 H 6 O] + ˙ isomers
Author(s) -
Walther H. J.,
Eyer H.,
Schlunegger U. P.,
Porter C. J.,
Larka E. A.,
Bey J. H.
Publication year - 1982
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.1210170206
Subject(s) - chemistry , isomerization , mass spectrometry , dissociation (chemistry) , electron ionization , ion , kinetic energy , carbon monoxide , mass spectrum , collision induced dissociation , ionization , polyatomic ion , chemical ionization , field desorption , photochemistry , analytical chemistry (journal) , tandem mass spectrometry , organic chemistry , chromatography , catalysis , physics , quantum mechanics
Phenol and five acyclic isomeric compounds have been investigated using electron impact and field ionization techniques, mass analysed ion kinetic energy spectrometry and collision induced dissociation mass analysed ion kinetic energy spectrometry. The kinetic energy release data corresponding to the elimination of carbon monoxide from the molecular ions show that at least two structures of the reactant ion are involved. The electron impact and field ionization collision induced dissociation mass analysed ion kinetic energy spectra indicate that under electron impact conditions, the phenol ion partially isomerizes to another ion structure. An isomerization of about 40% to the structure of cis ‐2‐hexen‐4‐yn‐1‐al is in good accordance with the spectral data.