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Updated: Aug 24, 2026

On-line Analysis of Nitrogen Containing Compounds in Complex Hydrocarbon Matrixes
Published on: August 5, 2016
Mass spectra of nitro-beta,beta-dihalostyrenes
Shaw-Tao Lin1, Chun-Jen Lee, Li-Chwen Chen
1Department of Applied Chemistry, Providence University, Sha-Lu, Taichung Hsien, Taiwan 433. sdlin@pu.edu.tw
Abstract:
The electron ionization (EI) fragmentation of nitro-beta,beta-dihalostyrenes depends strongly on the specific halogens present as well as on the position of the nitro group. Beta,beta-difluorostyrenes yielded mainly fluoroacetylene ions as the base peaks and o-nitro-beta,beta-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-beta,beta-difluorostyrene, o-nitro-beta,beta-dibromostyrene and compound 11.
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