catena-Poly[[[aquacopper(II)]-μ-(biphenyl-2,2′-dicarboxylato)-μ-[N,N′-bis(pyridin-4-yl)urea]] 1.25-hydrate]

In the title compound, {[Cu(C14H8O4)(C11H10N4O)(H2O)]·1.25H2O}n, the CuII cations are coordinated in a square-pyramidal fashion by trans carboxyl­ate O-atom donors from two diphenate (dip) ligands, trans pyridyl N-atom donors from two bis­(4-pyrid­yl)urea (bpu) ligands, and a ligated water mol­ecule in the apical position. [Cu(H2O)(dip)(bpu)]n coordination polymer layer motifs are oriented parallel to (\overline{1}02). These layer motifs display a standard (4,4) rectangular grid topology and stack in an AAA pattern along the a-axis direction to form the full three-dimensional crystal structure of the title compound, mediated by N—H⋯O and O—H⋯O hydrogen bonding patterns involving the water mol­ecules of crystallization.