Crystal structure of di-μ-iodido-bis­[(dimethyl sulfoxide-κO)(tri­phenyl­phosphane-κP)copper(I)]

The centrosymmetric dinuclear title compound, [Cu(2)I(2)(C(2)H(6)OS)(2)(C(18)H(15)P)(2)], represents the first example of a CuI complex ligated by an O-bound dimethyl sulfoxide ligand. In the crystal, the two tetrahedrally coordinated Cu(I) atoms are bridged by two μ(2)-iodido ligands in an almost symmetrical rhomboid geometry. The loose Cu⋯Cu contact of 2.9874 (8) Å is longer than the sum of the van der Waals radii of two Cu atoms (2.8 Å), excluding a significant cupriophilic inter­action in the actual dimer. C—H⋯O and C—H⋯I hydrogen bonding interactions as well as C—H⋯π(aryl) interactions stabilize the three-dimensional supramolecular network.