Poly[[aqua-[μ2-1,3-bis-(pyridin-4-yl)urea-κ2N4:N4']bis-(μ3-5-tert-butyl-isophthalato-κ3O1:O1':O3)dizinc(II)] trihydrate], a double-strand coordination polymer.

Abstract

In the title compound, {[Zn2(C12H12O4)2(C11H10N4O)(H2O)]·3H2O}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-butyl-isophthalate ligands. One of the Zn atoms displays a tetra-hedral coordination environment, while the other Zn atom adopts a five-coordinate geometry inter-mediate between square pyramidal and trigonal bipyramidal. Additionally, O-H⋯O hydrogen-bonding patterns involving the water mol-ecules of crystallization serve as a structure-stabilizing element by aggregating the double-strand motifs.