catena-Poly[[bis(nitrato-κ2O,O′)copper(II)]-μ-2,2′-(ethane-1,2-diyldithio)di-1,3,4-thiadiazole-κ2N4:N4′]

In the title compound, [Cu(NO3)(2)(C6H6N4S4)](n), the Cu-II atom, occupying a crystallographic inversion centre, is six-coordinated by two N atoms of two 2,2 '-[1,2-ethanediylbis(thio)]-bis[1,3,4-thiadiazole] ligands in trans positions, and four O atoms from two symmetry-related opposite nitrate anions, which are asymmetrically bonded, resulting in a strong distorted octahedral geometry of the central atom. The ethane group is equally disordered over two sites via another inversion centre. The bridging bidentate 2,2 '-[1,2-ethanediylbis(thio)]bis[1,3,4-thiadiazole] ligands link the Cu-II centres into a one-dimensional chain. The chains are interconnected via intermolecular S center dot center dot center dot O interactions [3.044 ( 4) and 3.084 (5) angstrom] and weak C-H center dot center dot center dot O hydrogen bonds, generating a three-dimensional supramolecular structure.