Synthesis, Crystal Structure and Catalytic Properties of a 2D Cobalt（II） Coordination Polymer Based on Mixed Ligands

张旭葛明HECKE Kristof Van崔广华

College of Chemical Engineering, Hebei United UniversityDepartment of Inorganic and Physical Chemistry, Ghent University

摘要：A new Co（II） metal-organic coordination polymer based on flexible bis（imidazole） and aromatic dicarboxylate co-ligands, namely [Co（bix）（nph）]n（H2nph = 3-nitrophthalic acid, bix = 1,4-bis（imidazole-1-ylmethyl）benzene）, has been hydrothermally synthesized and characterized by elemental analyses, TG, IR spectroscopy and single-crystal X-ray diffraction. It crystallizes in the triclinic space group P1 with a = 9.3767（14）, b = 10.1451（15）, c = 12.1488（17）, α = 102.6450（10）, β = 108.856（2）, γ = 98.807（2）°, V = 1035.3（3）3, Z = 2, C22H17 Co N5O6, Mr = 506.34, Dc = 1.624 g/cm3, μ = 0.882 mm-1 and F（000） = 518. In the complex, the nph2- ligands connect neighbouring cobalt atoms to form binuclear [Co（nph）]2 subunits, which are linked by pairs of bix ligands to form a 2D honeycomb-like（6,3） network. In addition, the compound is further extended into a 3D supramolecular architecture by π···π stacking interactions. Moreover, the luminescence and catalytic properties of the complex are investigated.

基金资助：

Project supported by the National Natural Science Foundation of China（No.51474086）；