Crystal structure of aqua­{μ-N-[3-(di­methyl­amino)­prop­yl]-N′-2-(oxidophen­yl)oxamidato}(1,10-phen­anthroline-5,6-dione)dicopper(II) perchlorate hemihydrate

The title compound, [Cu(2)(C(13)H(16)N(3)O(3))(C(12)H(6)N(2)O(2))(H(2)O)]ClO(4)·0.5H(2)O, consists of a cis-oxamide-bridged binuclear Cu(II) complex cation, a perchlorate anion and half a solvent water mol­ecule. One Cu(II) cation is N,N′,N",O-chelated by an N-[3-(di­methyl­amino)­prop­yl]-N′-(2-hy­droxy­phen­yl)oxamide trianion in a distorted square-planar geometry, whereas the other Cu(II) cation is O,O′-chelated by the oxamide moiety of the anion and N,N′-chelated by a 1,10-phenanthroline-5,6-dione mol­ecule, and a water mol­ecule further coordinates the second Cu(II) cation, completing a distorted square-pyramidal coordination geometry. In the crystal, classical O—H⋯O hydrogen bonds, weak C—H⋯O hydrogen-bonding inter­actions and π–π stacking inter­actions link the complex cations, anions and solvent water mol­ecules into a three-dimensional supra­molecular architecture. In the crystal, the di­methyl­amino­propyl unit of the oxamide anion is disordered over two positions with an occupancy ratio of 0.561 (11):0.439 (11); the solvent water mol­ecule is also disordered over two positions, the occupancy ratio being 0.207 (10):0.293 (10).