catena-Poly[[(1,10-phenanthroline)cobalt]-μ-2,4′-oxydibenzoato]

In the title compound, [Co(C₁₄H₈O₅)(C₁₂H₈N₂)]_n, the Co^II atom is six-coordinated in a distorted octa­hedral coordination geometry by four O atoms from two chelating carboxyl­ate groups from different 2,4′-oxydibenzoate anions and by two N atoms from a 1,10-phenanthroline (phen) ligand. The two benzene rings of the 2,4′-oxydibenzoate ligand form a dihedral angle of 77.14 (16)°. Adjacent Co^II atoms are bridged by 2,4′-oxydibenzoate anions to form a helical chain that propagates along the b-axis direction. Neighboring chains are further assembled by inter­molecular π–π stacking inter­actions between inversion-related phen ligands [centroid-to-centroid distance = 4.0869 (8) Å] to form a two-dimensional supra­molecular architecture.