Bismuth Alkoxide Dimer Complexes Containing Planar Bi2(μ‐OR)2 Cores: Syntheses and Structures of [{Bi[OCH(CF3)2]3(thf)}2] and [{Bi(OC6F5)3(C7H8)}2] · 2C7H8

Abstract

A potential precursor for the production of high-temperature superconductors, the loose dimer 1 is bound by two asymmetric alkoxide bridges (a monomeric unit is shown right). The Bi atoms in 1 are surrounded in a distorted pseudo-octahedral fashion by one bridging and two terminal alkoxide ligands and a THF molecule. Each Bi atom also has a stereochemically active lone pair of electrons.