Poly[[diaqua­[μ(2)-3-carb­oxy-5-(pyridine-4-carboxamido)­benzoato][μ(4)-5-(pyridine-4-carboxamido)­isophthalato]cerium(III)] monohydrate]

In the title compound, {[Ce(C(14)H(9)N(2)O(5))(C(14)H(8)N(2)O(5))(H(2)O)(2)]·H(2)O}(n), three carboxyl groups of two independent isophthalate anions are deprotonated and they bridge the Ce(III) cations, forming a two-dimensional polymeric structure parallel to (001); another carboxyl group is not deprotonated and links with the adjacent pyridine ring via an O—H⋯N hydrogen bond. The Ce(III) cation is coordinated by six O atoms from carboxyl groups and two O atoms from coordinated water mol­ecules in a distorted square-anti­prismatic arrangement. Extensive O—H⋯O and O—H⋯N hydrogen bonding occurs in the crystal structure.