Three New Lanthanide Coordination Polymers Constructed from 2,6-Bis(pyrazin-2-yl)pyridine-4-carboxylate: Syntheses, Structures and Luminescence  

作　　者：SONG Juan DUAN Bo-Feng LU Jiu-Fu GE Hong-Guang 宋娟;段博峰;卢久富;葛红光

机构地区：[1]Shaanxi Key Laboratory of Catalysis,College of Chemical&Environment Science,Shaanxi University of Technology,Hanzhong 723001,China [2]Mechanical Engineering Training Center,Shaanxi University of Technology,Hanzhong 723001,China

出　　处：《Chinese Journal of Structural Chemistry》2020年第4期793-800,共8页结构化学（英文）

基　　金：Supported by the Key Scientific Research Project of Education Department of Shaanxi Province(17JS027);the team of syngas catalytic conversion of Shaanxi university of Technology。

摘　　要：Three new lanthanide coordination polymers[Ln(bppc)2(suc)0.5(H2O)]n·nH2O(Ln=Eu(1),Ln=Dy(2),Ln=Tb(3),Hbppc=2,6-bis(pyrazin-2-yl)pyridine-4-carboxylate,H2suc=succinic acid)have been hydrothermally synthesized and structurally characterized.These compounds are isostructural and crystallize in triclinic P1 space group.The Ln(Ⅲ)ions are eightcoordinated with dodecahedral coordination geometry.Ln(Ⅲ)cations are linked by carboxylate groups from(bppc)-ligands to form one-dimensional ring chains,which are further connected by the carboxylate groups of(bppc)-and(suc)2-ligands to extend a 2D layer structure.These coordination polymers display the characteristic emission bands of Ln(Ⅲ)ions in the solid state.

关 键 词：LANTHANIDE coordination polymers crystal structure luminescence properties 

分 类 号：O641.4[理学—物理化学]