catena-Poly[[diaqua­bis­{μ(2)-3,5-bis­[(pyridin-4-yl)methyl­amino]­benzoato}nickel] monohydrate]

In the title coordination polymer, {[Ni(C(19)H(17)N(4)O(2))(2)(H(2)O)(2)]·H(2)O}(n), the Ni(2+) cation is located on an inversion center and coordinated by two carboxyl­ate O atoms from two different 3,5-bis­(pyridin-4-yl­methyl­amino)­benzoate anions, two O atoms from two coordinated water mol­ecules and two N atoms from two different 3,5-bis­(pyridin-4-yl­methyl­amino)­benzoate anions, displaying a slightly distorted NiN(2)O(4) octa­hedral geometry. Each 3,5-bis­(pyridin-4-yl­methyl­amino)­benzoate anion acts as a μ(2)-bridge, linking different nickel ions into a chain along [010]. In the crystal, adjacent chains are further linked through N—H⋯O, O—H⋯O, O—H⋯N and C—H⋯O hydrogen bonds into a three-dimensional network. The coordinated water mol­ecules and a disordered water mol­ecule of hydration with 0.50 site occupancy play an important role in the formation of these hydrogen-bonding inter­actions.