由混合羧酸构筑的稀土配位聚合物的合成  

Synthesis of a Rare-earth Coordination Polymer Constructed from Mixed Dicarboxylate Ligands

作　　者：王晓中[1] 杨庆凤[2] 章月平[2] 王政[2] 刘万毅[1] 冀永强[1] 

机构地区：[1]宁夏大学化学化工学院,银川750021 [2]宁夏大学能源化工重点实验室,银川750021

出　　处：《辽东学院学报（自然科学版）》2011年第4期265-268,286,共5页Journal of Eastern Liaoning University:Natural Science Edition

基　　金：宁夏回族自治区自然科学基金项目(NZ1150);宁夏大学科学研究基金项目((E)ndzr09-5)

摘　　要：采用多步水热法合成了由反丁烯二酸和草酸共同构筑的稀土配位聚合物[Sm2(fum)2(ox)(H2O)4].4H2O(fum=反丁烯二酸盐,ox=草酸盐),并对其进行了单晶X射线衍射(XRD)、红外光谱(IR)及热重(TG)分析。单晶XRD结果表明,反丁烯二酸和草酸的羧基氧原子均与Sm3+配位,化合物是由草酸做柱支撑Sm-fum层而成的三维网络结构,且沿a轴,具有孔径约为6.4×9.72的长方形孔道,孔道被配位水分子和游离水分子占据。A rare - earth coordination polymer [ Sm2 （fum） 2 （ox） （ H2O ）4 ] · 4H2O （ fum = fumarate ; ox = oxalate） was synthesized under hydrothermal conditions and characterized by single -crystal XRD, IR and TG. The single - crystal XRD results indicated that all 0 atoms of fumaric acid and oxalic acid attach to Sm3＋ cations. The complex exhibits a 3D network structure consisting of oxalate pillared Sm - fumarate layers. It contains approximately 6.4 × 9.7 A2 rectangular channels along the a axis, and these channels are occupied by cooridinated water and free waters

关 键 词：稀土金属 反丁烯二酸 草酸 

分 类 号：O741.3[理学—晶体学] O741.6