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Chemistry for Sustainable Development

2006 year, number 4

Mechanochemical Synthesis of Diborane(6) by the Interaction of Anhydrous Chlorides of Iron (II), Cobalt (II), Nickel (II) with Tetrahydroborates of Alkaline Metals

K. G. MYAKISHEV and V. V. VOLKOV
Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 3, Novosibirsk 630090 (Russia)
Pages: 375-378

Abstract

The reactions of FeCl2, CoCl2, NiCl2 with MBH4 (M = Li, K, Na) proceeding during mechanical activation of the mixtures of crystal substances in a vacuum vibratory mill were investigated. It was established that the reactions are accompanied by the formation of diborane(6), or B2H6, the yield of which depends on the nature of initial reagents, molar ratio of reagents, time of mechanical activation and the mass of ball load. Under the optimal conditions, the yield of B2H6 is 30 to 50 %.