Syntheses and structural characterizations of heterometallic copper(I)/indium(III) complexes containing phosphine ligands

Abstract

Addition of anhydrous InCl3 to a THF solution of CuCl and dppe (dppe = Ph2PCH2CH2PPh2), or CuCl and PPh3, resulted in the formation of the crystalline heterometallic copper(I)/indium(III) complexes [(dppeCu)2(μ-Cl)(μ-dppe)] [InCl4]·THF(1·THF) and [{Cu(PPh3) 2}2(μ-Cl)4(InCl)]·THF (2·THF), respectively, which have been characterized by X-ray diffraction. Compound 1 is composed of a dinuclear copper(I) complex cation and a mononuclear tetrahedral indium(III) complex anion. Complex 2 comprises an indium center in a quasi square-pyramidal chloride-coordination environment connected to two Cu(PPh) 3 fragments via Cu(μ-Cl)2In bridges. © 2007 Verlag der Zeitschrift für Naturforschung,.