Electron ionization mass spectra of 2- and 4-chloro- and bromo-substituted diphenylamines

Full-text article (79 kB)
(subscribers only)

Eur. J. Mass Spectrom. 8, 17 - 19 (2002)

Electron ionization mass spectra of 2- and 4-chloro- and bromo-substituted diphenylamines

A.M. Hassan Rezk and Kh.A. Sife-Eldeen
National Centre for Radiation Research and Technology, Nasr City, Cairo, Egypt
M.A. Rabbih and Ezzat T.M. Selim^*
Atomic and Molecular Physics Unit, Nuclear Physics Department, NRC, Atomic Energy Authority, Cairo 13759, Egypt

ABSTRACT:

The electron ionization mass spectra of 2- and 4-chlorodiphenylamine and 2- and 4-bromodiphenylamine are reported. All the spectra are characterized by strong molecular ion signals, corresponding to the base peak. Two primary fragmentations of significance include the expulsion of the substituents X and HX (X = halogen) from the four compounds. Further dissociation of the primary fragment ions results in the formation of some secondary decomposition ions having low or negligible relative abundances.

Keywords: chlorodiphenylamine, bromodiphenylamine, electron impact mass spectra, fragmentation

You can now buy this paper on-line in PDF format; it costs only £11.75. Just click on the BUY on-line button. You can pay on-line through a secure server and get access immediately.