Pressure effect on reaction rate of cycloaddition of tetracyanoethylene with .ALPHA.-methylstyrene in some aprotic solvents.

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概要

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• The high-pressure kinetic study of the title reaction was carried out at 25 °C up to 1500 bar in carbon tetrachloride, chloroform, 1,2-dichloroethane, and acetonitrile, taking into account the role of the EDA complex formation. The dipole moment at the transition state is as large as 8.5±0.5 debye by Kirkwood's electrostatic model. The solvent effect is also ascribable to the polarity change upon activation. The intrinsic volume of activation is −27±3 cm<SUP>3</SUP>/mol for the cycloadding process and −3.3±3 cm<SUP>3</SUP>/mol for the reverse reaction.

• 公益社団法人 日本化学会の論文

著者

• Sasaki Muneo

  Department Of Chemistry Faculty Of Science And Engineering Konan University

• Nakahara Masaru

  Department Of Chemistry Faculty Of Science Kyoto University

• Uosaki Yasuhiro

  Department Of Chemical Science And Technology Faculty Of Engineering University Of Tokushima

• Osugi Jiro

  Department of Chemistry, Faculty of Science, Kyoto University

• Tsuzuki Hideaki

  Department of Chemistry, Faculty of Science, Kyoto University

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