A high nuclearity carbonyl cluster of rhenium stabilized by an interstitial carbide; synthesis and X-ray crystal structure of the anion [Re7C(CO)21]3–
Abstract
The trianion [Re7C(CO)21]3–, isolated from the pyrolysis of [ReH2(CO)4][NEt4] in n-tetradecane, has been characterized by an X-ray crystal structural analysis of the [PPh4]+ salt, and shown to contain a monocapped octahedral arrangement of rhenium atoms with an encapsulated carbon atom.