Poly[[bis­(acetonitrile-κN)bis­[μ(2)-2,2′-(methyl­enedithio)bis­(1,3,4-thia­diazole)-κ(2) N (4):N (4′)]copper(II)] bis­(perchlorate) acetonitrile solvate]

In the title compound, {[Cu(C(5)H(4)N(4)S(4))(2)(C(2)H(3)N)(2)](ClO(4))(2)·C(2)H(3)N}(n), the Cu(II) atom occupies a crystallographic inversion centre and is six-coordinated by six N atoms of four symmetry-related 2,2′-(methyl­enedithio)bis­(1,3,4-thia­diazole) (L) ligands and two acetonitrile mol­ecules in a slightly distorted octa­hedral geometry. The ligand L adopts an N:N′-bidentate bridging mode in a trans configuration, bridging the Cu atoms via translation symmetry, forming a two-dimensional layer-like structure. The perchlorate ions serve as acceptors for inter­molecular C—H⋯O hydrogen bonds, which link the layers into a three-dimensional network. The ClO(4) (−) anion is disordered with an occupation ratio of 0.658:0.342.