Poly[[bis­[μ(4)-3-(2-carboxyl­atophen­yl)propionato]{N-[2-(pyridine-3-amido)­eth­yl]nicotinamide}­dicopper(II)] penta­hydrate]

In the title compound, {[Cu(2)(C(10)H(8)O(4))(2)(C(14)H(14)N(4)O(2))]·5H(2)O}( n ), the Cu(II) 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. [Cu(2)(cpp)(2)]( n ) coordination polymer layer motifs with embedded {Cu(2)(OCO)(4)} paddlewheel clusters are thereby constructed. These layer motifs are connected into a three-dimensional [Cu(2)(cpp)(2)(pen)]( n ) coordination polymer network by tethering pen ligands. Treating the {Cu(2)(OCO)(4) paddelwheel clusters as 6-connected nodes reveals an underlying cross-pillared self-penetrated rob network with 4(8)6(6)8 topology. The water mol­ecules of crystallization are held to the coordination polymer network by N—H⋯O and O—H⋯O hydrogen-bonding patterns. [Image: see text]