2-氟异烟酸和1,10-邻菲罗啉的稀土配位聚合物的合成、结构及荧光性质  

Synthesis,Structure and Luminescence Property of a Lanthanide-Coordination Polymer Based on 2-Fluoroisonicotinic Acid and 1,10-Phenanthroline

作　　者：吴威平[1] 吴宇[1] 路璐[1] 孙延春[1] 

机构地区：[1]四川理工学院化学与制药工程学院功能材料研究所,四川自贡643000

出　　处：《四川理工学院学报（自然科学版）》2015年第5期12-15,共4页Journal of Sichuan University of Science & Engineering(Natural Science Edition)

基　　金：四川省教育厅科研基金(14ZB0220);四川理工学院校级培育项目(2014PY01;2015PY03)

摘　　要：利用2-氟异烟酸为配体合成并表征了一例稀土铕离子配位聚合物{[Eu(L)2(phen)(OH)]}n(1)(HL=2-氟异烟酸,phen=1,10-邻菲罗啉),是一个由2-氟异烟酸的羧基和羟基配体桥联Eu3+形成的一维链结构。铕离子呈现出八配位的四方反棱柱体构型。一维链之间通过吡啶环间的C-H…N氢键和π…π作用以及C-H…F氢键等分子间力连接成三维超分子结构。热重分析表明所合成的配合物可以稳定到约200℃。荧光测试表明配合物具有铕离子的特征红色荧光。A case of lanthanide europium ion coordination polymer {[Eu（ L）2（ phen）（ OH） ]}n（ 1）（ HL = 2-fluoroisonicotinic acid,phen = 1,10-phenanthroline） which is synthetized by 2-fluoroisonicotinic acid,is a 1D chain structure synthetized by the carboxyl and hydroxy ligand of 2-fluoroisonicotinic acid bridging Eu3 ＋. Eu3 ＋ion is coordinated by eight donor atoms and has the structure of square-antiprism. All of 1D chains are extended via the intermolecular forces of π…π interactions and C-H…N hydrogen bonds between pyridine ring and C-H…F hydrogen bonds into a 3D supramolecular structures.The thermogravimetric analysis suggests compound 1 can be stable to about 200 ℃. The luminescence property of 1 has been investigated and the result indicates that the compound displays red luminescence which is the characteristic of the Eu3 ＋ion.

关 键 词：2-氟异烟酸 1 10-邻菲罗啉 稀土配位聚合物 荧光 

分 类 号：O614.121[理学—无机化学] O625.621[理学—化学]