catena-Poly[[bis(di-4-pyridylamine-κN)(terephthalato-κ2 O,O′)nickel(II)]-μ-di-4-pyridylamine-κ2 N:N′]

In the title compound, [Ni(C8H4O4)(C10H9N3)3] n , an NiII atom with octahedral coordination is bound by one chelating terephthalate (tp) dianion, two monodentate di-4-pyridylamine (dpa) ligands, and two bridging dpa ligands. These link the Ni atoms into one-dimensional [Ni(tp)(dpa)3] n coordination polymer chains that propagate along the b-axis direction. Interweaving pairs of chains stack in three dimensions via N—H...O hydrogen bonding.