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Molybdenum complexes as catalysts for the reduction of molecular nitrogen in protic media

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Abstract

N2-fixing systems in protic media consisting of different reducing agents and molybdenum complexes (initially Mo(V)) as N2 activators form the same Mo(III) carbonyl upon replacing N2 by carbon monoxide. When CO is removed from the carbonyl, the Mo(III) complex formed becomes again capable of catalyzing the reduction of N2 to hydrazine by Ti(III) or Cr(II) hydroxide in aqueous alcohol. Sodium amalgam forms a particularly active system, reducting N2 catalytically in the presence of a Mo(III) complex already at room temperature.

Abstract

Показано, что в различных азотфикцирующих системах, действующих в протонных средах в присутствии комплексов молибдена, введение ингибитора окиси углерода приводит к обратимому образованию в растворе одного и того же карбонильного комплекса Mo(Ш). После уда-ления окиси углерода комплекс вновь способен катали-зировать восстановление азота до гидразина под дейст-вием различных восстановителей. В случае амальгамы натрия, как восстановителя, каталитическое восстанов-ление азота до гидразина происходит уже при комнатной температуре.

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References

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Shilov, A.E., Shilova, A.K. & Vorontsova, T.A. Molybdenum complexes as catalysts for the reduction of molecular nitrogen in protic media. React Kinet Catal Lett 3, 143–148 (1975). https://doi.org/10.1007/BF02187506

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  • DOI: https://doi.org/10.1007/BF02187506

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