catena-Poly[[(dipyrido[3,2-a:2′,3′-c]phenazine)cobalt(II)]-μ-biphenyl-2,2′-dicarboxyl­ato]

In the title compound, [Co(C(14)H(8)O(4))(C(18)H(10)N(4))](n), the Co(II) atom is six-coordinated by four O atoms from two different biphenyl-2,2′-dicarboxyl­ate ligands and two N atoms from the bidentate dipyrido[3,2-a:2′,3′-c]phenazine ligand in a distorted octa­hedral geometry. The Co(II) atoms are bridged by the biphenyl-2,2′-dicarboxyl­ate ligands to form a one-dimensional chain structure. π–π inter­actions between neighbouring chains result in a two-dimensional supra­molecular network (centroid-to-centroid separation = 3.381 Å).