稀土Sm-1,3,5-三[4-苯甲酸]-均苯三甲酰胺配合物的合成、结构及性质研究  

Synthesis,Crystal Structures and Properties of Rare Earth Coordination Polymer Sm-1,3,5-tri[4-benzoic]-benzenetriyl-tris(formamide)

作　　者：刘云晶 钟昀[1] 方智利[1] 

机构地区：[1]华东交通大学化学化工系,江西南昌330013

出　　处：《中国稀土学报》2015年第1期66-73,共8页Journal of the Chinese Society of Rare Earths

基　　金：国家自然科学基金项目(21365012);江西省研究生创新专项资金项目(YC2013-S168)资助

摘　　要：以稀土Sm Cl3·6H2O,1,3,5-三[4-苯甲酸]-均苯三甲酰胺和4,4'-联吡啶为原料合成一个具有酰胺活性基团的稀土配合物{[Sm(L)(DMF)]·2(DMF)·5(H2O)}。采用红外光谱、元素分析、热重分析和X射线粉末衍射对其结构进行表征。通过单晶XRD对配合物结构进行解析,研究了配合物的荧光性质。结果表明:该配合物具有多孔道的三维框架结构,失去母液暴露于空气中其框架结构不是很稳定;在410℃以后随着温度的上升,框架结构完全坍塌;在不同激发波长作用下产生多种Sm3+特征发射跃迁,具有良好的荧光性质。The rare earth coordination polymer t[ Sm（L）（DMF）]-2（DMF） ＂5（ H20）/ with active amide groups were successfully synthesized in the presence of SmC13 -6H20, 1,3,5-tri[4-benzoic]-benzenetriyl-tris（formamide） and 4,4-bipyridine. The crystal structures and fluorescence properties were characterized and investigated by means of infrared spectroscopy, elemental analysis, thermal gravimetric analysis as well as X-ray powder diffraction and single-crystal XRD. The results demonstrated that the coordination polymer had a porous three-dimensional frame- work, and was not very stable exposed to air in absence of the mother liquor; the framework was completely col- lapsed after 410 ℃. Fluorescence performance showed that products generated good fluorescence properties at dif- ferent excitation wavelengths role.

关 键 词：配合物Sm-L 结构解析 荧光 

分 类 号：O641.4[理学—物理化学]