ESR Studies at High Pressures. III. Spin-Exchange Reactions of Some Nitroxide Radicals in Acetone and Hexane.
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概要
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Pressure effects on the rate of spin–spin exchange of some nitroxide radicals in acetone and hexane at 298.2 K have been studied by means of a high-pressure ESR technique. It was found that this exchange reaction is diffusion-controlled. The rate of the spin exchange is related to that of diffusion, the probability of the spin exchange, <I>P</I>=<I>f</I>(<I>J</I>, τ<SUB>1</SUB>), and steric factor <I>f</I><SUB>s</SUB>. The values of <I>P</I> and hence τ<SUB>1</SUB> were estimated as a function of pressure. A method for evaluating the steric factor and the exchange integral is proposed.
- 公益社団法人 日本化学会の論文
著者
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Sueishi Yoshimi
Department Of Chemistry Faculty Of Science Okayama University
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Yamamoto Shunzo
Department Of Chemistry Faculty Of Science Okayama University
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Nishimura Norio
Department Of Chemistry Faculty Of Science Okayama University
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Kuzukawa Masahiro
Department of Chemistry, Faculty of Science, Okayama University
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