Premium
Electron‐impact‐induced rearrangements of organic ions VI Unimolecular reactions of isomeric[C 8 H 9 ]+ions
Author(s) -
Uccella N.
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.1210100703
Subject(s) - chemistry , isomerization , ion , moiety , acetylene , deuterium , metastability , ethylene , molecule , hydrogen , photochemistry , electron ionization , stereochemistry , organic chemistry , catalysis , atomic physics , physics , ionization
Metastable ion spectra and deuterium labelling have been used to investigate a series of gaseous [C 8 H 9 ]+ ions of isomeric structures. The similarity of the intensities of their metastable loss of hydrogen, acetylene and ethylene molecules and metastable reactions of specifically labelled ions, suggests that the [C 8 H 9 ]+ reacting ions, formed initially with different structures, isomerise to a common structure or mixture of structures via deep‐seated rearrangement reactions which render all hydrogen atoms equivalent. The isomerisation process involved is controlled by a conversion of a vinyl bond into an allyl‐type bond, thus destroying the aromatic moiety.