基于吡啶酰胺类配体一维带状配位聚合物的合成、结构及荧光性质(英文)

One-Dimensional Ribbon-Like Chain Coordination Polymers with Pyridyl and Amide-Containing Ligand: Synthesis,Structure and Luminescence Property

通过吡啶酰胺类配体3,5-二(4-吡啶酰胺基)吡啶(4-DPBA)与相应金属盐反应,合成了3个配位聚合物{[Zn(4-DPBA)2(NO3)2].4DMF}n(1),{[Cd(4-DPBA)2(NO3)2].4DMF}n(2)和{[Cu(4-DPBA)2(DMF)2](ClO4)2.7DMF.2H2O}n(3),并用红外光谱、元素分析、粉末及单晶X-射线衍射等方法对其进行了表征。结果表明配合物1和2是同构的,由平行的一维带状链通过氢键连接而成二维层状结构,而配合物3是由3种不同取向的一维带状链构成二维多层结构。这3个配合物最终均通过氢键连接形成三维超分子结构。研究了配合物1和2的荧光性质。

Three new coordination polymers {[Zn（4-DPBA）2（NO3）2]·4DMF}n（1）,{[Cd（4-DPBA）2（NO3）2·4DMF}n（2）and {[Cu（4-DPBA）2（DMF）2]（ClO4）2·7DMF·2H2O}n（3） were synthesized by reactions of pyridyl and amide- containing ligand N,N＇-di（pyridin-4-yl）-pyridine-3,5-dicarboxamide （4-DPBA） with corresponding metal salt. All the complexes were characterized by FTIR, elemental, powder and single crystal X-ray diffraction analyses. Theresults show that complexes 1 and 2 are isostructural and have two-dimensional （2D） layer structure with parallel one-dimensional （1D） ribbon-like chains linked by hydrogen bonds, while complex 3 possesses 2D networks with three different orientations of 1D chains connected by hydrogen bonds. All the complexes show three-dimensional（3D） supramolecular structures through hydrogen complexes 1 and 2 was investigated. CCDC： 879335, bonding interactions. The 1; 879366, 3. photolumineseent property ofcomplexes 1 and 2 was investigated. CCDC： 879335, 1; 879366, 3.