对羟基苯乙酸稀土(Pr,Tb,Lu)配合物的合成、晶体结构及荧光性质  

Synthesis,Crystal Structure and Luminescent Property of Rare Earth (Pr,Tb,Lu) Complexes with 4-Hydroxyphenylacetic Acid

作　　者：秦毅[1] 吴小勇[2] 刘建风[2] 赵国良[1,2] 

机构地区：[1]浙江师范大学行知学院,浙江金华321004 [2]浙江师范大学化学与生命科学学院,浙江金华321004

出　　处：《中国稀土学报》2013年第1期7-13,共7页Journal of the Chinese Society of Rare Earths

基　　金：浙江省自然科学基金资助项目(Y12B010005)

摘　　要：合成了3个双核稀土配合物[Ln2(HPAA)6(bipy)2(H2O)2].H2O(Ln=Pr,1;Tb,2;Lu,3;HPAA-=对羟基苯乙酸根;bipy=4,4'-联吡啶),通过元素分析、红外光谱、热重分析对其进行表征,用单晶X射线衍射方法测定了配合物的晶体结构。结构分析表明三种晶体属于异质同晶型,同属于三斜晶系,空间群为P 1。测定了固态Tb(Ⅲ)配合物的荧光光谱,结果表明:在形成配合物后,依然显示Tb(Ⅲ)离子的特征发射,配体将吸收的能量有效地转移给了中心离子,配体起到了很好的敏化作用。Three novel dinuclear rare earth complexes [Ln2（HPAA）6（bipy）2（H2O）2]·H2O（Ln=Pr,1;Tb,2;Lu,3;HPAA-= 4-hydroxyphenylacetic acid anion;bipy=4,4′-bipyridine） were synthesized and characterized by elemental analysis,IR and TG-DTG.The complexes crystal structures were determined by single crystal X-ray diffraction method.The crystal structure analysis revealed that the three complexes belong to isomorphism,crystallizes in the triclinic system,space group P1.The photoluminescence property in solid state of the Tb（III） complex was investigated.The result shows that the luminescence behavior probably resulted from the ligand-sensitized metal-centered emission.

关 键 词：稀土配合物 对羟基苯乙酸 4 4'-联吡啶 晶体结构 荧光光谱 

分 类 号：O614.33[理学—无机化学]