A Dinuclear Cd(Ⅱ)Cluster-based Coordination Polymer:Synthesis,Structure and Luminescence Property  

作　　者：薛丽平 

机构地区：[1]College of Food and Drug,Luoyang Normal University

出　　处：《Chinese Journal of Structural Chemistry》2018年第1期119-124,共6页结构化学（英文）

基　　金：supported by the National Natural Science Foundation of China(21401097)

摘　　要：One two-dimensional coordination polymer with a formula of {[Cd（L）（imidazole）（H2O）]（H2O）}n（1） was obtained by the synthetic reactions in aqueous solution using a newly synthesized H2L（H2L = methyl-3-hydroxy-5-carboxy-2-thiophenecarboxylate） ligand.Compound1 crystallizes in monoclinic system,space group C2/c with a = 18.3176（11）,b = 8.5366（9）,c =8.4152（5）A,β = 101.789（6）°,V = 2797.1（3）A^3,Dc = 1.979 g/cm^3,C（10）H（12）N2O7SCd,Mr = 416.68 F（000） = 1648,μ = 1.745 mm^-1,F（000） = 1648,the final R = 0.0323 and wR = 0.0604 for 2604 observed reflections with I 〉 2s（I）.Structure analyses reveal that the compound is constructed by dinuclear Cd（Ⅱ） clusters bridged by two hydroxyl oxygens of L^2-anions,which features a two-dimensional network with 4-connected sql topology.Furthermore,the compound exhibits high thermal stability and intense fluorescent emission,and could be explored for potentia luminescent materials.One two-dimensional coordination polymer with a formula of {[Cd（L）（imidazole）（H2O）]（H2O）}n（1） was obtained by the synthetic reactions in aqueous solution using a newly synthesized H2L（H2L = methyl-3-hydroxy-5-carboxy-2-thiophenecarboxylate） ligand.Compound1 crystallizes in monoclinic system,space group C2/c with a = 18.3176（11）,b = 8.5366（9）,c =8.4152（5）A,β = 101.789（6）°,V = 2797.1（3）A^3,Dc = 1.979 g/cm^3,C（10）H（12）N2O7SCd,Mr = 416.68 F（000） = 1648,μ = 1.745 mm^-1,F（000） = 1648,the final R = 0.0323 and wR = 0.0604 for 2604 observed reflections with I 〉 2s（I）.Structure analyses reveal that the compound is constructed by dinuclear Cd（Ⅱ） clusters bridged by two hydroxyl oxygens of L^2-anions,which features a two-dimensional network with 4-connected sql topology.Furthermore,the compound exhibits high thermal stability and intense fluorescent emission,and could be explored for potentia luminescent materials.

关 键 词：methyl-3-hydroxy-5-carboxy-2-thiophenecarboxylate topology luminescence property 

分 类 号：O641.4[理学—物理化学]