Copper(I) Chloride Cluster Complexes with Pentaphenyl‐Cyclopentaphosphane as Ligand

Abstract

AbstractPentaphenylcyclopentaphosphane, c‐(P5Ph5) is conviently prepared from PhPCl2 and thermally activated zinc powder in thf. Hydrolysis of c‐(P5Ph5) in the presence of ZnCl2 gives to an equimolar distribution of PhPH2, PhP(=O)H2, and PhP(=O)(OH)H. Reaction of c‐(P5Ph5) with CuICl leads to the tetranuclear copper(I) chloride complex [Cu4(μ4‐Cl)2(μ2‐Cl)2{c‐(P5Ph5)}2] with a Cu4(μ4‐Cl)2(μ2‐Cl)2 cluster core and the hexanuclear [Cu6(μ3‐Cl)2(μ2‐Cl)2{c‐(P5Ph5)}2(thf)2]. Hydrolysis of the copper c‐(P5Ph5) complexes leads to significantly higher amounts of the primary phosphane oxide PhP(=O)H2.