(2,2′-Bipyridine-6,6′-dicarboxyl­ato-κ(3) N,N′,O (6))(6′-carb­oxy-2,2′-bipyridine-6-carboxyl­ato-κ(3) N,N′,O (6))cobalt(III)

The Co(III) atom in the title compound, [Co(C(12)H(6)N(2)O(4))(C(12)H(7)N(2)O(4))], is six-coordinated in a distorted octa­hedral geometry by four N atoms and two O atoms of the chelating 2,2′-bipyridine-6,6′-dicarboxyl­ate and 6′-carb­oxy-2,2′-bipyridine-6-carboxyl­ate ligands. Intermolecular O—H⋯O hydrogen bonds and face-to-face π-stacking inter­actions [centroid–centroid distance = 3.6352 (16) Å] between inversion-related pyridine rings link adjacent mononuclear units into a two-dimensional supra­molecular structure, and several inter­molecular C—H⋯O inter­actions are also observed.