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Electron impact mass spectra of 6‐substituted 12H‐tetrachlorodibenzo[d,g][1,3,2] dioxaphosphocin‐6‐sulfides and oxides
Author(s) -
Chongjiu Li,
Daibin Yang,
Jin Fei,
Wanyi Chen
Publication year - 2000
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 - 10.1002/1097-0231(20000730)14:14<1309::aid-rcm34>3.0.co;2-v
Subject(s) - chemistry , mass spectrum , ion , electron ionization , spectral line , methane , oxide , medicinal chemistry , crystallography , stereochemistry , organic chemistry , physics , astronomy , ionization
Bis(2‐hydroxy‐3,5‐dichlorophenyl)methane and its cyclized derivatives (6‐substituted 12H‐tetrachlorodibenzo[d,g] [1,3,2]dioxaphosphorin‐6‐oxide and sulfides) were analyzed by EI‐MS, and the mass spectra are discussed. It was shown that the mass spectra of the cyclized derivatives are rather different from that of the parent compound. The relative roles of the S and O atoms were very important, and led to special ions which could indicate certain moieties within the molecular structure. Thus, the fragment ions at m/z 63 and 333 indicate a cyclic structure with a (P=S) group, while m/z 397 indicates P(=S)S or P(=S)‐Cl) moieties, and m/z 380 with high intensity indicates P(=O)O. Copyright © 2000 John Wiley & Sons, Ltd.