The compound [Cu2(bpy)2(PDIAla)(H2O)2](ClO4)2·H2O(H2PDIAla = N,N'-(p-xylylene)dialanine,bipy = 2,2'-bipyridine) 1 has been synthesized and structurally determined by single-crystal X-ray diffraction,elemental analyses and IR spectroscopy.The crystal belongs to the monoclinic system,space group P21 with a = 10.9772(6),b = 18.5464(9),c = 11.0790(6) ,β = 116.3110o,V = 2021.87(18) 3,Z = 2,Dc = 1.594 Mg/m3,Mr = 970.70,μ = 1.260 mm-1,F(000) = 996,λ(MoKα) = 0.71073 ,the final R = 0.0400 and wR = 0.1050 for all observed reflections.In the structure,the O(5)-H(52)···O(4) hydrogen bonding between aqua ligand and carbonyl oxygen of the H2PDIAla ligand along the c axis produce hydrogen-bonded helices which are assembled along the b axis through O(61)-H(61)···O(2) and N(6)-H(6N)···O(2) interactions to form 2-D layers that are further linked by π···π interactions between bpy ligands to yield a three-dimensional supramolecular network.
