Selective hydrogen atom abstraction by hydrogen atoms in photolysis and radiolysis of alkane mixtures at 77 K.
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概要
- 論文の詳細を見る
A selective hydrogen atom abstraction reaction by H atoms, which are produced at 77K by radiolysis of alkane or photolysis of hydrogen halides, has been found in isobutane, 2,2,3,3-tetramethylbutane (TMB), and cyclopropane matrices as well as in the neopentane matrix. The selective hydrogen atom abstraction reaction is caused by H atoms which have initial kinetic energies in the range from 15 to 67 kcal/mol. The reaction is caused also by D atoms. The competitive reaction between <I>c</I>-C<SUB>6</SUB>H<SUB>12</SUB> and HI for H atoms has been studied in the radiolysis and photolysis of <I>neo</I>-C<SUB>5</SUB>H<SUB>12</SUB>–<I>c</I>-C<SUB>6</SUB>H<SUB>12</SUB>–HI mixture at 77K. The rate constants of these reactions in the neopentane matrix are quite different from those of a thermal H atom reaction, but similar to those of a hot H atom reaction. The importance of the selective hydrogen atom abstraction reaction by H atoms is pointed out in the radical formation in the radiolysis of pure TMB at 77K.
- 公益社団法人 日本化学会の論文
著者
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Miyazaki Tetsuo
Department Of Applied Chemistry Graduate School Of Engineering Nagoya University
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Kinugawa Kazuhisa
Department of Synthetic Chemistry, Faculty of Engineering, Nagoya University
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Eguchi Masao
Department of Synthetic Chemistry, Faculty of Engineering, Nagoya University
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Guedes Selma
Department of Synthetic Chemistry, Faculty of Engineering, Nagoya University
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