Crystal structure of di-μ-hydroxido-bis-{aqua-[ethyl (1,10-phenanthrolin-3-yl)phospho-nato-κ ,']copper(II)} hepta-hydrate.

In the title compound, [Cu(OH){CHN(POCH)}(HO)]·7HO, two Cu cations are bridged by two hydroxide groups, forming a centrosymmetric binuclear complex. Each Cucation is further coordinated by the N atoms of a bidentate ethyl (1,10-phenanthrolin-3-yl)phospho-nate anion and a water mol-ecule in a square-pyramidal geometry. In the crystal, a network of O-H⋯O hydrogen bonds involving the P(O)(O)(OEt) groups, bridging hydroxyl groups, coordinated and uncoordinated water mol-ecules generates a three-dimensional supra-molecular structure. The ethyl group exhibits disorder and was modelled over three sites with occupancies of 0.455, 0.384 and 0.161.