Synthesis and crystal structure of [UO 2 (BH 4) 2 (hmpa) 2], a novel uranyl complex and the first metal oxoborohydride

C Villiers, P Thuéry, M Ephritikhine

Index: Villiers, Claude; Thuery, Pierre; Ephritikhine, Michel Inorganic Chemistry Communications, 2007 , vol. 10, # 8 p. 891 - 893

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Citation Number: 12

Abstract

Reaction of [UO2Cl2 (THF) 2] 2 with NaBH4 in THF led to the formation of [UO2Cl2− x (BH4) x (THF) n], and addition of hmpa induced the crystallization of [UO2 (BH4) 2 (hmpa) 2], whose structure exhibits the bidentate ligation mode of the borohydride ligand; this uranyl borohydride, which is thermally unstable with respect to elimination of borane, is a catalyst in the hydroboration of substituted alkenes by NaBH4.