超分子2,2′-联咪唑镉(Ⅱ)配聚物的合成与结构表征(英文)  

Synthesis and Structural Characterization of Supramolecular Cadmium(Ⅱ)-2,2'-biimidazole Coordination Polymers

作　　者：李巧云[1] 马运声[1] 杨高文[1] 石建东[1] 顾巧珍[1] 袁荣鑫[1] 

机构地区：[1]常熟理工学院化学与材料工程系江苏省新型功能材料重点建设实验室,常熟215500

出　　处：《无机化学学报》2008年第9期1461-1467,共7页Chinese Journal of Inorganic Chemistry

基　　金：江苏省自然科学基金(NoBK2006044);江苏省教育厅重大基金(No06KJA43014);江苏省新型功能材料重点建设实验室开放基金(No07KFJJ007)资助项目

摘　　要：以硫氰酸根、叠氮基、二氰胺为桥联配体,分别与2,2′-联咪唑和硝酸镉反应,获得配聚物[Cd(SCN)2(H2biim)]n(1),[Cd(N3)2(H2biim)]n(2)和[Cd2(NO3)(dca)3(H2biim)2.5]n(3),3个化合物通过元素分析、IR、TGA等表征,并测定了它们的晶体结构。结果表明:化合物1和2分别是以μ1,3-SCN-和μ1,1-N3-双桥连接的一维链状结构,化合物3是以μ1,5-dca-和μ3,3′-H2biim交叉桥连的二维网状结构。对它们的荧光性质也进行了初步分析。Three polymeric compounds [Cd（SCN）2（H2biim）]n（1）,[Cd（N3）2（H2biim）]n（2） and [Cd2（NO3）（dca）3（H2biim）2.5]n（3） （H2biim=2,2′-H2biimidazole, dca=dicyanamide）, have been synthesized and characterized. Compound 1 forms a 1D chain where [CdS2N4] octahedra are doubly bridged by two μ1.3-SCN- ligands. These chains are stacked together through hydrogen bonds and π-π interactions forming a 2D supermolecular network. In compound 2, the [CdNr] octahedra are doubly bridged by two μ1.1-N3- bridges to form a chain. These chains are stacked together through hydrogen bonding interactions forming a 3D supermolecular structure. In compound 3, the Cd2 ions are ahemately bridged by two μ1.5-dca- and one μ3.3-H2biim bridge along b-axis and form a chain. These chains are bridged by μ1.5- dca- to form a plane. Cdl and Cd2 atoms are bridged by one dca^- with Cdl locate at either side of the plane. The luminescent properties of these compounds were studied. CCDC： 657894, 1; 657895, 2; 657896, 3.

关 键 词：镉 配合物 2 2′-联咪唑 荧光性质 

分 类 号：O614.24[理学—无机化学]