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6.4×9.72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
出处
《辽东学院学报（自然科学版）》
CAS
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)
关键词
稀土金属
反丁烯二酸
草酸
rare - earth coordination polymer
fumaric acid
oxalic acid
