Synthesis, Reactivity and Theoretical Study of B3H8-and Related Derivatives

Autor: Serrar, C., Ouassas, A., Boutalib, A., Frange, B.
Zdroj: Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry; April 1996, Vol. 26 Issue: 4 p669-683, 15p
Abstrakt: Octahydrotriborate salts, B3H8-, have been prepared by the reaction of NaBH4 with Lewis acids such as BX3·BDMA (BDMA = benzyldimethylamine, × = Cl,Br) or C2H5I in diglyme. The presence of BH3·BDMA as a by-product in the former reaction provides new insight into the reaction mechanism of B11H14- formation. In acetonitrile-water solutions of HCl or CH3CO2H, the B3H8- anion reacted to give B3H7CH3CN or B3H7CH3CO2- characterized by 11B NMR spectroscopy. Their kinetic hydrolysis study was consistent with NMR analysis. Reaction of Bu4NB3H8 and CuCl2 at 0°C produced pure B3H6Cl2-. An AM1 theoretical study of the substituted derivatives B3H7L (L = Cl-, CH3CN, CH3CO2-, OH-) and B3H6L2 (L = Cl-) is reported.
Databáze: Supplemental Index