Poly[[aqua­[μ(2)-1,3-bis­(pyridin-4-yl)urea-κ(2) N (4):N (4′)]bis­(μ(3)-5-tert-butyl­isophthalato-κ(3) O (1):O (1′):O (3))dizinc(II)] trihydrate], a double-strand coordination polymer

In the title compound, {[Zn(2)(C(12)H(12)O(4))(2)(C(11)H(10)N(4)O)(H(2)O)]·3H(2)O}( n ), monoperiodic coordination polymer double strands are held into the triperiodic crystal structure by means of N—H⋯O hydrogen-bonding patterns between the amide groups of the 1,3-di(pyridin-4-yl)urea ligands and unligated O atoms belonging to 5-tert-butyl­isophthalate ligands. One of the Zn atoms displays a tetra­hedral coordination environment, while the other Zn atom adopts a five-coordinate geometry inter­mediate between square pyramidal and trigonal bipyramidal. Additionally, O—H⋯O hydrogen-bonding patterns involving the water mol­ecules of crystallization serve as a structure-stabilizing element by aggregating the double-strand motifs. [Image: see text]