| Abstract: A tetranuclear CuⅡ complex, [Cu4L2(pic)4(H2O)2]·2CH3COCH3·2H2O, was synthesized by the reaction of copper(Ⅱ) picrate tetrahydrate with a chelating bisoxime ligand 3,3′-dimethoxy-2,2′-[(1,3-propane)-dioxybis(nitrilomethylidyne)]diphenol (H2L). X-ray single crystal structure analysis reveals that the complex crystallizes in the monoclinic system, space group P21/c with cell parameters: a=1.895 6(4) nm, b=1.509 9(3) nm, c=1.544 0(3) nm, β=104.916(3)°, Z=2, V=4.271(2) nm3, R1=0.052 4, wR2=0.139 9. In the complex, there are four CuⅡ ions, two ligand L2- moieties (which provide N2O2 donors), four picrate ions(pic-) and two coordinated water molecules, which result in the formation of distorted octahedral geometries around the CuⅡ ions. The complex forms an infinite 2D supermolecular structure by intermolecular O-H…O hydrogen bonds. CCDC: 626458. |
