3,5-Diamino-4H-1,2,4-triazol-1-ium (6-carb-oxy-pyridine-2-carboxyl-ato)(pyridine-2,6-dicarboxyl-ato)cuprate(II) trihydrate.

In the complex anion of the title compound, (C(2)H(6)N(5))[Cu(C(7)H(4)NO(4))(C(7)H(3)NO(4))]·3H(2)O, the Cu(II) atom is coordinated by tridentate 6-carb-oxy-pyridine-2-carboxyl-ate and pyridine-2,6-dicarboxyl-ate ligands and is surrounded by four O atoms in the equatorial plane and two N atoms in axial positions in a distorted octa-hedral geometry. In the crystal, the components are linked into a three dimensional network by O-H⋯O, N-H⋯O, N-H⋯N and C-H⋯O hydrogen bonds and a π-π inter-action with a centroid-centroid distance of 3.6080 (8) Å.