Kinetics and Stoichiometry of Nitrogen Fixation with TiCl<SUB>3</SUB>-Mg and VCL<SUB>3</SUB>-Mg in Tetrahydrofuran
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概要
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The kinetics and stoichiometry of nitrogen fixation with TiCl<SUB>3</SUB>-Mg and VCl<SUB>3</SUB>-Mg in tetrahydrofuran (THF) systems were studied. The systems react with molecular nitrogen at room temperature and normal pressure giving magnesium dichloride and nitrogen-containing complexes of compositions [MNMg<SUB>2</SUB>Cl<SUB>2</SUB>(THF)], where M=Ti and V, according to the stoichiometry: MCl<SUB>3</SUB>(THF)<SUB>3</SUB>+\frac52Mg+\frac12N<SUB>2</SUB>→[MNMg<SUB>2</SUB>Cl<SUB>2</SUB>(THF)]+\frac12MgCl<SUB>2</SUB>(THF)<SUB>2</SUB>. Properties of the isolated nitrogen-containing complexes were examined. Reactions under argon and hydrogen gave hydride-containing complexes. The initial rate of nitrogen fixation was first order with respect to the amounts of MCL<SUB>3</SUB>, Mg, and nitrogen pressure. A mechanism involving the complexation of N<SUB>2</SUB> with dimeric M(II) species followed by rate-determining process to react with magnesium is proposed and discussed.
- 公益社団法人 日本化学会の論文
著者
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Ikeda Sakuji
Research Laboratory Of Resources Utilization Tokyo Institute Of Technology
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Yamamoto Akio
Research Laboratory of Resources Utilization, Tokyo Institute of Technology
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Ookawa Masaharu
Research Laboratory of Resources Utilization, Tokyo Institute of Technology
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Go Shigeo
Department of Chemical Engineering, Tokyo Institute of Technology
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Takahashi Mitsuaki
Research Laboratory of Resources Utilization, Tokyo Institute of Technology
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Keii Tominaga
Department of Chemical Engineering, Tokyo Institute of Technology
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