Reductions with sulfurated borohydrides. I. Preparation of sulfurated borohydrides

Abstract

Sodium borohydride reacts with sulfur at room temperature in the presence of appropriate organic solvents to give a sulfurated borohydride: NaBH 2 S 3 . The formulation of this hydride has been established by infrared, nuclear magnetic resonance, and elementary analysis. Thermal decomposition and hydrolysis are reported. The reaction observed with NaBH 4 appears to be general between borohydrides and the lower elements of Group VIA: Se and Te. A facile preparative method of NaBH 2 S 3 is presented.