Synthesis and X-ray structure of octanuclear copper cluster Cu8(μ-I)(μ6-S)(DTP)6

The title compound, Cu8(μ-I)(μ6-S)(DTP)6 (DTP=diethyldithiophosphate), has been synthesized by the reaction of Mo3(μ3-S)(μ-O)(μ-S)2(DTP)4(CH3CN) with CuI, and its structure has been determined by X-ray crystallography. Crystal data: C24H60Cu8IO12P6S13, Mr=1778.54, trigonal, R-3, Z=3, a=20.734(3), c=11.874(2) Å, V=4420.7(13) Å3, Dc=2.004 g cm−3. An interstitial μ6-S is established in the Cu8 cubic center. The octanuclear cubes are linked together by μ-I so that a strict infinite linear polymeric cluster chain is formed along the [0 0 1] direction.