Abstract
AbstractExperimental and calculated [B3LYP/6‐311+G(d,p) level of theory] NMR parameters [chemical shifts δ11B and δ13C, and coupling constants 1J(13C,11B) and 1J(11B,11B)] of hexaethyl‐2,4‐dicarba‐nido‐hexaborane(8), hexaethyl‐2,3,5‐tricarba‐nido‐hexaborane(7) and their monoanions are reported. The solid‐state structure of the 2,3,5‐tricarbaborane was determined by X‐ray crystallography as the Au–PPh3 complex, where the gold atom is linked to C5 (88 %) with contacts to B4,6 or to C2,3 (12 %) with contacts to B4,6. The 2,3,5‐tricarbaborate anion η5‐coordinates to the Rh(CO)2 fragment, forming a closo cluster.
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