μ(3)-Chlorido-μ(2)-chlorido-(μ(3)-pyrrolidine-1-carbo­dithio­ato-κ(4) S:S,S′:S′)tris­[(tri­ethyl­phosphane-κP)copper(I)]: crystal structure and Hirshfeld surface analysis

The title trinuclear compound, [Cu(3)(C(5)H(8)NS(2))Cl(2)(C(6)H(15)P)(3)], has the di­thio­carbamate ligand symmetrically chelating one Cu(I) atom and each of the S atoms bridging to another Cu(I) atom. Both chloride ligands are bridging, one being μ(3)- and the other μ(2)-bridging. Each Et(3)P ligand occupies a terminal position. Two of the Cu(I) atoms exist within Cl(2)PS donor sets and the third is based on a ClPS(2) donor set, with each coordination geometry based on a distorted tetra­hedron. The constituents defining the core of the mol­ecule, i.e. Cu(3)Cl(2)S(2), occupy seven corners of a distorted cube. In the crystal, linear supra­molecular chains along the c axis are formed via phosphane–methyl­ene-C—H⋯Cl and pyrrolidine–methyl­ene-C—H⋯π(chelate) inter­actions, and these chains pack without directional inter­actions between them. An analysis of the Hirshfeld surface points to the predominance of H atoms at the surface, i.e. contributing 86.6% to the surface, and also highlights the presence of C—H⋯π(chelate) inter­actions.