Synthesis and Molecular Structure of the Cu4P8 Cage Compound [Cu4(P4Ph4)2(PCyp3)3]

Plenty of phosphorus: The first CuI oligophosphanido complex [Cu4(P4Ph4)2(PCyp3)3] (1; Cyp=cyclo-C5H9), synthesized from [CuCl(PCyp3)2] and [Na2(thf)4(P4Ph4)], displays a remarkable cage structure in the solid state. The central Cu4P8 core of 1 (with appendant phosphane P atoms) is shown in the picture.