新型三维金属-有机配位聚合物的合成、结构与性能

Synthesis,Structure and Characterization of Novel 3D Metal-organic Coordination Polymers:[M_6(TDC)_6(hmt)_2(DMF)_6(H_2O)_3·(H_2O)](M=Cd,Mn)

在中温混合溶剂热条件下,分别用镉离子和锰离子与混合多羧酸和多氮配体反应合成了2个金属-有机配位聚合物[M6(TDC)6(hmt)2(DMF)6(H2O)3.(H2O)](JUC-85a,JUC-85b)(M=Cd,Mn;TDC=噻吩-2,5-二羧酸;hmt=六次甲基四胺;DMF=N,N-二甲基甲酰胺).通过单晶X射线衍射、元素分析、热重分析、粉末X射线衍射、拓扑结构分析和荧光分析对其结构、组成和性质进行了表征.单晶衍射结果表明,化合物JUC-85a和JUC-85b是同构的三维开放骨架结构,具有(3,6)连接拓扑结构loh1.同时,JUC-85a具有较好的荧光性质.

Two metal-organic coordination polymers [M6（TDC）6（hmt）2（DMF）6（H2O）3·（H2O）]（JUC-85a and JUC-85b）（M=Cd,Mn,TDC=thiophene-2,5-dicarboxylic,hmt=hexamethylenetetramine,DMF=N,N-dimethylformamide and JUC=Jilin University,China） were synthesized by self-assembly of mixed ligands and corresponding transition metal salts under mild conditions,and characterized by single-crystal X-ray diffraction,elements analysis,TGA,topology analysis,powder XRD and photoluminescent.X-ray crystallography reveals that JUC-85a and JUC-85b exhibit the same three-dimensional structure with a rare ＂loh1＂ type of（3,6）-connected networks.In addition,photoluminescent of JUC-85a was characterized.