S. Jia
2001
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Journal
Journal of Instrumental Analysis
Abstract
Bis(2 _ hydroxy _ bromo _ chlorophenyl)methane(Ⅰ)and its cyclized derivatives—6 _ N _ substituted _ 12H _ bromo _ chlorodibenzodioxaphosphocin _ 6 _ sulfides(Ⅱ,Ⅲ) were analyzed by EI-MS, and the mass spectra were discussed. It was shown that the mass spectra of the cyclized derivatives are rather different from that of the parent compound. In bis(2 _ hydroxy _ bromo _ chlorophenyl) methane, the most important fragmentation occurs on the bond linking the methylene group and one of the phenyl rings. N and S atoms play an important role in cyclized derivatives. The dioxygen _ ring ion(m/z 422)is the characteristic ion for the cyclized compounds(Ⅱand Ⅲ).