Bis[4,5-dimethyl-2-(2-pyrid-yl)-1H-imidazole-κN,N](1H-imidazole-κN)copper(II) bis-(perchlorate).

In the title complex, Cu(C(3)H(4)N(2))(C(10)H(11)N(3))(2)(2), the Cu(II) cation has a distorted trigonal-bipyramidal geometry defined by a CuN(2)N'(2)N'' donor set. The imidazole ligand is disordered over two orientations of equal occupancy. Two of the perchlorate ion sites are located on a twofold rotation axis, and one of is disordered over two sites of equal occupancy. In the crystal structure there is a two-dimensional infinite network of hydrogen-bonded mol-ecules parallel to the ab plane.