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Acetylene reduction by hydroxides of transition metals

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Abstract

Ethylene and ethane are formed during reduction of acetylene by aqueous hydroxides of Ti(III), V(II), Cr(II) and Mo(III). Under these conditions ethylene is not reduced as a rule, which indicates direct formation of ethane from acetylene with the participation of four electrons of a reducing agent. The results are explained by the collective effect of metal ions in the hydroxides, leading to four-electron reduction of a substrate within the coordination sphere.

Abstract

При восстановлении ацетилена в водной среде гидроокисями Ti(III). V(II), Cr(II) и Mo(III) образуются зтилен и зтан. Этилен в зтих условиях, как правило, не восстанавлиается, что указывает на непосредственное образование зтана из ацетилена с участием четырех злектронов восстановителя. Результаты объясняются с точки зрения коллективного действия ионов металлов гидроокисей, обеспечивающего четырехэлектронное восстановление субстрата без выхода из координационной сферы металла.

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Ovcharenko, A.G., Nikonova, L.A. & Shilov, A.E. Acetylene reduction by hydroxides of transition metals. React Kinet Catal Lett 4, 93–99 (1976). https://doi.org/10.1007/BF02073976

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  • DOI: https://doi.org/10.1007/BF02073976

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