Crystal, molecular, and electronic structure of [Ta2Cl 4(μ-Cl)4(PMe3)4]: A metal-metal single bond between eight-co-ordinate tantalum atoms

Abstract

The crystal structure of the title complex shows an MCl4M bridge across a weak Ta–Ta interaction and eight-fold co-ordination about each metal centre; an electronic structure calculation supports the existence of a σ metal–metal bond.