Structures of Metallocarboranes. I. Crystal and Molecular Structure of 2,6-Di-n-cyclopentadienyloctahydro-1,10-dicarba-2,6-dicobalta-closo-decaborane at -150deg. a Bimetallocarborane with a Metal-Metal Bond.

摘要

The crystal and molecular structure of 2,6-Di-eta-cyclopentadienyloctahydro-1, 10-dicarba-2, 6-dicobalta-closo-decaborane,2,6-(eta-C5H5)2-2,6-Co2-1, 10-C2B6H8,has been determined at -150C by single-crystal X-ray diffraction methods. The molecule crystallizes as green slabs in the monoclinic space group C2/c with eight molecules per unit cell. The polyhedral framework is a distorted bicapped square antiprism with carbons at the caps and one cobalt in each square face. The cobalt atoms are joined by a 2.489 A bond,the first confirmed metal-metal bond in a bimetallocarborane. (Modified author abstract)