Diaqua­bis­(perchlorato)(1,10-phenanthroline)copper(II)

In the title compound, [Cu(ClO(4))(2)(C(12)H(8)N(2))(H(2)O)(2)], the Cu(II) atom is coordinated in a square-planar fashion by the two N atoms of a chelating 1,10-phenanthroline ligand and by two water mol­ecules trans to the N atoms. The coordination sphere of the metal atom is augmented by O atoms of two weakly bonded perchlorate anions, thus yielding a strongly distorted CuN(2)O(4) octa­hedral environment. The crystal packing is stabilized by O—H⋯O hydrogen bonds between the water mol­ecules and the perchlorate anions. In addition, the organic mol­ecules are associated by π–π stacking inter­actions between symmetry-equivalent anti­parallel non-nitro­gen aromatic rings, with inter­planar distances of 3.543 (2) Å.