A study of the redistribution reaction of tetramethyltin with dimethyltin dichloride in several aprotic solvents.
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概要
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The redistribution reaction of tetramethyltin with dimethyltin dichloride was studied in eight aprotic solvents by using the <SUP>1</SUP>H NMR technique. The second-order rate constant of the reaction (In <I>k</I><SUB>2</SUB>) is proportional to the dielectric constant of the solvent. There is a weak relation between the rate constants (In <I>k</I><SUB>2</SUB>) and the values of <SUP>2</SUP><I>J</I>(Sn–H) of Me<SUB>2</SUB>SnCl<SUB>2</SUB> in several solvents, which are considered to be related to the coordination ability of the solvents. The rate constants are also related to Kosower's <I>Z</I> values of the solvents. The activation entropies of the reaction in four typical solvents have large negative values. This predicts that the reaction proceeds <I>via</I> a four-center transition state.
- 公益社団法人 日本化学会の論文
著者
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Takahashi Kensuke
Department Of Applied Chemistry Nagoya Institute Of Technology
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Saito Koji
Department Of Anesthesiology And Intensive Care Medicine Tohoku University Hospital
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Yoshino Akihiro
Department of Industrial Chemistry, Nagoya Institute of Technology
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Saito Koji
Department of Industrial Chemistry, Nagoya Institute of Technology
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Yamashita Yukihide
Department of Industrial Chemistry, Nagoya Institute of Technology
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Yoshino Akihiro
Department of Applied Chemistry, Nagoya Institute of Technology
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