| 二苯甲酮与烃的光化夺氢反应中产生的活泼自由基的ESR研究 |
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| 引用本文： | 纪海星,徐广智.二苯甲酮与烃的光化夺氢反应中产生的活泼自由基的ESR研究[J].波谱学杂志,1986,3(2):125-130. |
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| 作者姓名： | 纪海星 徐广智 |
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| 作者单位： | 中国科学院化学研究所, 北京 |
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| 摘 要： | 本文用具立体阻碍的自旋捕捉剂2,4,6-三-特丁基亚硝基苯(TBN)与ESR相结合的方法,研究了十种烷烃及四种芳烃与二苯甲酮光化夺氢反应中产生的活泼自由基。结果表明,R3R2R1Ċ和TBN形成烷氧苯胺自由基加合物。R-ĊH-R'与TBN形成烷氧苯胺自由基加合物和氮氧自由基加合物。TBN可用于区分有、无空间位阻的烷烃,芳烃自由基。自旋加合物的ESR波谱可表明自由基中未偶电子所在碳原子附近的有效质子数目。
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| 收稿时间： | 1985-09-04 |
AN ESR STUDY OF ACTIVE RADICALS PRODUCED IN THE PHOTOCHEMICAL HYDROGEN ABSTRACTION REACTIONS BETWEEN BENZOPHENONE AND HYDROCARBONS |
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| Ji Haixing,Xu Guangzhi.AN ESR STUDY OF ACTIVE RADICALS PRODUCED IN THE PHOTOCHEMICAL HYDROGEN ABSTRACTION REACTIONS BETWEEN BENZOPHENONE AND HYDROCARBONS[J].Chinese Journal of Magnetic Resonance,1986,3(2):125-130. |
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| Authors: | Ji Haixing Xu Guangzhi |
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| Institution: | Institute of chemistry, Academia sinica, Beijing |
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| Abstract: | The active radicals produced in the photochemical hydrogen abstraction reactions between benzophenone and aliphatic or aromat;c hydrocarbons have been studied by combination of spin trapping reagent 2,4, 6-tri-t-butylnitrosobenzene (TBN) by ESR spectroscopy.Results show that R3R2R1Ċ reacts with TBN to form N-alkoxyanilino spin adducts, and RĊHR' reacts with TBN to form both N-alkoxyanilino and Nitroxide spin adduets.Therefore, TBN may be used for distinguishing radicals from aliphatic or aromatic hydrocarbons with and without steric hindrance. |
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