The title complex, [Cu(NO(3))(C(3)H(8)N(2)S(2))(2)]NO(3), represents a low-symmetry polymorph (P-1, Z = 4) of a previously reported form [P-1, Z = 2; Ali et al. (2011 ▶). Polyhedron, 30, 542-548]. The Cu(II) atom in each independent cation is found within a distorted square-pyramidal N(2)S(2)O coordination geometry defined by two N,S-bidentate ligands and an O atom derived from a monodentate nitrate. The primary difference between the cations is found in the relative orientations of the coordinated nitrate groups, which are directed to opposite sides of the mol-ecule. Supra-molecular layers along [110] and sustained by N-H⋯O inter-actions feature in the crystal packing. These are connected along the c axis by C-H⋯O inter-actions.
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