catena-Poly[[[bis[2,2′-(propane-1,3-diyldithio)bis(1,3,4-thiadiazole)-κN4]copper(II)]-bis[μ-2,2′-(propane-1,3-diyldithio)bis(1,3,4-thiadiazole)-κ2N4:N4′]] bis(perchlorate)]

In the title compound, {[Cu(C7H8N4S4)(4)](ClO4)(2)}(n), the Cu-II atom, occupying a crystallographic inversion centre, is six-coordinated by six N atoms of three symmetry-related 2,2'-(propane-1,3-diyldithio)bis(1,3,4-thiadiazole) (L) ligands in a slightly distorted octahedral geometry. The ligand L adopts two kinds of coordination modes in the crystal structure; one is a monodentate coordination mode and serves to complete the octahedral coordination of the Cu atom and the other is an N:N'-bidentate bridging mode in a trans configuration, bridging Cu atoms via translation symmetry along the b axis into a chain structure. The perchlorate ions serve as acceptors for intermolecular C-H center dot center dot center dot O hydrogen bonds, which link the chains into a three-dimensional network.