(2,2′-Bi­pyridine-κ(2) N,N′)tetra­kis­(dimethyl sulfoxide-κO)copper(II) bis­(perchlorate)

The title compound, [Cu(C(2)H(6)OS)(4)(C(10)H(8)N(2))](ClO(4))(2), contains a Cu(II) ion with a distorted octa­hedral coordination environment, bonded by four O atoms of the monodentate dimethyl sulfoxide ligands and two N atoms of the bidentate chelating 2,2′-bi­pyridine ligand. The equatorial Cu—N and Cu—O bond lengths are in the range 1.979 (2)-1.998 (3) Å. The axial Cu—O bond distances are 2.365 (2) and 2.394 (2) Å. In the crystal, the complex cations and perchlorate anions are connected by numerous C—H⋯O hydrogen bonds, which leads to additional stabilization of the structure. The perchlorate anion is disordered over two sets of sites with a 0.716 (3):0.284 (3) occupancy ratio.