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Mass spectra of nitro‐ β , β ‐dihalostyrenes
Author(s) -
Lin ShawTao,
Lee ChunJen,
Chen LiChwen,
Huang KehFeng
Publication year - 2004
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1429
Subject(s) - chemistry , nitro , fragmentation (computing) , halogen , electron ionization , mass spectrum , ion , isoxazole , dissociation (chemistry) , collision induced dissociation , ionization , stereochemistry , medicinal chemistry , mass spectrometry , crystallography , computational chemistry , organic chemistry , tandem mass spectrometry , alkyl , chromatography , computer science , operating system
The electron ionization (EI) fragmentation of nitro‐ β , β ‐dihalostyrenes depends strongly on the specific halogens present as well as on the position of the nitro group. β , β ‐Difluorostyrenes yielded mainly fluoroacetylene ions as the base peaks and o ‐nitro‐ β , β ‐dihalostyrene possibly furnished the ion with a structure similar to that of benzo[ a ]isoxazole (11). The structural identity of the ion was verified by comparing the collision‐induced dissociation (CID) spectra of m/z 119 ions from p ‐ and o ‐nitro‐ β , β ‐difluorostyrene, o ‐nitro‐ β , β ‐dibromostyrene and compound 11. Copyright © 2004 John Wiley & Sons, Ltd.
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