Abstract
In the title compound, {[Cu(C(14)H(8)O(4))(C(11)H(10)N(4)O)(H(2)O)]·1.25H(2)O} (n) , the Cu(II) cations are coordinated in a square-pyramidal fashion by trans carboxyl-ate O-atom donors from two diphenate (dip) ligands, trans pyridyl N-atom donors from two bis-(4-pyrid-yl)urea (bpu) ligands, and a ligated water mol-ecule in the apical position. [Cu(H(2)O)(dip)(bpu)] (n) coordination polymer layer motifs are oriented parallel to (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 mol-ecules of crystallization.