Di-μ-5-hydroxy­isophthalato-bis­[aqua(1,10-phenanthroline)copper(II)] trihydrate.

In the title compound, [Cu2(C8H4O5)2(C12H8N2)2(H2O)2]·3H2O, the Cu complex forms a centrosymmetric dimer with a Cu⋯Cu separation of 8.198 (3) Å. In the 5-hydroxy­isophthalate ligands, two carboxyl­ate groups coordinate two copper(II) cations in μ2-bridging bidentate coordination modes. [ABSTRACT FROM AUTHOR]