SMALL BORON CARBON CHAINS STABILIZED IN RARE EARTH METALLIC FRAMEWORKS - A BONDING ANALYSIS

摘要

The bonding properties of rare earth metal boron carbide compounds are analyzed by means of extended Huckel tight-binding and ab initio calculations. Results indicate that these compounds san he described in first approximation as being built of cumulene-like BxCy anionic units interacting with not fully oxidized metallic cations. (C) 1997 Academic Press. [References: 28]