Experimental

R factor = 0.086; wR factor = 0.217; data-to-parameter ratio = 15.4. In the title complex, [CuCl(C8H8N2OS)(C18H15P)2]2CH3OH, the CuI ion is coordinated by one chloride anion, one S atom from the 5-methoxy-1H-benzimidazole-2(3H)-thione ligand and two P atoms from two triphenylphosphine ligands in a distorted tetrahedral geometry. One of the N-bound H atoms is involved in an intramolecular N—H Cl hydrogen bond, while another one interacts with the solvent methanol molecule via an N—H O hydrogen bond. Intermolecular O—H Cl and O—H O hydrogen bonds link two further complex molecules and four solvent molecules into a centrosymmetric structural unit. The short distance of 3.624 (4) A ̊ between the centroids of the five- and the six-membered rings of two benzimidazole fragments indicates the presence of – interactions. Related literature For the structures and properties of CuI complexes with triphenlyphosphine ligands, see: Gennari et al. (2006); Kita-gawa et al. (1995); Raper (1994). For complexes with a 5-methoxy-1H-benzimidazole-2(3H)-thione ligand, see: Schneider et al. (2008). For related structures, see: Lobana &amp