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学科主题: 分析化学
题名: Gas-phase fluorine migration reactions in the radical cations of pentafluorosulfanylbenzene (Aryl-SF5) and benzenesulfonyl fluoride (Aryl-SO2F) derivatives and in the 2,5-xylylfluoroiodonium ion
其他题名: Aryl-SF5和Aryl-SO2F衍生物的自由基阳离子以及2,5-xylylfluoroiodonium离子气相氟迁移反应的研究
作者: Gao Y(高瑛); Wang HY(王昊阳); Zhang X(张祥); Cheng JS(程家顺); Zhang F(张芳); Guo YL(郭寅龙)
通讯作者: 王昊阳 ; 郭寅龙
刊名: J. Mass Spectrom.
发表日期: 2014
DOI: 10.1002/jms.3363
卷: 49, 期:6, 页:481-489
收录类别: SCI
英文摘要: The gas-phase reactions of Aryl-SF5+ and Aryl-SO2F+ have been studied with the electron ionization tandem mass spectrometry. Such reactions involve F-atom migration from the S-atom to the aryl group affording the product ion Aryl-F+ by subsequent expulsion of SF4 or SO2, respectively. Especially, the 4-pentafluorosulfanylphenyl cation 4-SF5C6H4+ (m/z 203) from 4-NO2C6H4SF5+ by loss of NO2 could occur multiple F-atom migration reactions to the product ion C6H4F3+ (m/z 133) by loss of SF2 in the MS/MS process. The gas-phase reactions of 2,5-xylylfluoroiodonium (pXyl-I+F, m/z 251) have also been studied using the electrospray tandem mass spectrometry, which involve a similar F-atom migration process from the I-atom to the aryl group giving the radical cation of 2-fluoro-p-xylene (or its isomer 4-fluoro-m-xylene, m/z 124) by reductive elimination of an iodine atom. All these gas-phase F-atom migration reactions from the heteroatom to the aryl group led to the aryl-F coupling product ions with a new formed CAryl-F bond. Density functional theory calculations were performed to shed light on the mechanisms of these reactions. Copyright (c) 2014 John Wiley & Sons, Ltd.
语种: 英语
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/38594
Appears in Collections:分析化学研究室_期刊论文

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Recommended Citation:
Gao Y,Wang HY,Zhang X,et al. Gas-phase fluorine migration reactions in the radical cations of pentafluorosulfanylbenzene (Aryl-SF5) and benzenesulfonyl fluoride (Aryl-SO2F) derivatives and in the 2,5-xylylfluoroiodonium ion[J]. J. Mass Spectrom.,2014,49(6):481-489.
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