Poly[[bis[μ4-3-(2-carboxylatophenyl)propionato]{N-[2-(pyridine-3-amido)ethyl]nicotinamide}dicopper(II)] pentahydrate]

In the title compound, {[Cu2(C10H8O4)2(C14H14N4O2)]·5H2O}n, the CuII cations are coordinated in a square-pyramidal fashion, with four 3-(2-carboxyphenyl)propionate (cpp) carboxylate O-atom donors in the basal plane, along with an N-atom donor from a N-[2-(pyridin-3-ylamino)ethyl]nicotinamide (pen) ligand in the apical position. [Cu2(cpp)2]n coordination polymer layer motifs with embedded {Cu2(OCO)4} paddlewheel clusters are thereby constructed. These layer motifs are connected into a three-dimensional [Cu2(cpp)2(pen)]n coordination polymer network by tethering pen ligands. Treating the {Cu2(OCO)4 paddelwheel clusters as 6-connected nodes reveals an underlying cross-pillared self-penetrated rob network with 48668 topology. The water molecules of crystallization are held to the coordination polymer network by N—H...O and O—H...O hydrogen-bonding patterns.