邻氨基苯甲酸与氯化稀土配合物的固相合成及性质研究  

The solid state synthesis and properties of rare earth chlorinate with o-aminobenzoic acid coordination com- pounds

作　　者：李文先[1] 田桂香[1] 高金凤[1] 

机构地区：[1]内蒙古大学化学化工学院,呼和浩特o10021

出　　处：《化学试剂》2003年第1期8-10,共3页Chemical Reagents

基　　金：内蒙古自然科学基金(20001301)资助。

摘　　要：应用固相反应法合成了稀土氯化物与邻氨基苯甲酸的配合物。对配合物进行了组成分析及热谱分析,确定了配合物组成为[RE(LH)2(L)C12]·6H2O(RE:Nd,Eu,Tb;LH:C6H4(NH2)COOH;L:C6H4(NH2)COO-)。通过IR光谱、紫外光谱及摩尔电导的测定推测了配位情况。溶解性实验表明配合物可溶于乙醇,但不溶于水。荧光光谱实验表明,固相反应合成的Tb3+配合物有较好的荧光性能。粒径测量表明:固相合成的配合物[Nd(LH)2(L)Cl2]·6H2O达到纳米级水平。Three coordination compounds of chlorinate rare earth (Nd3+ , Eu3+ , Tb3+ ) with o-aminobenzoic acid have been synthesized by solid state reaction. The elemental analysis, molar conductivity and DTA-TG studies suggested that the complexes have the composition of [RE(LH)2(L)C12] ·6H2O (RE: Nd,Eu,Tb; LH:C6H4-(NH2)COOHi L: C6H4(NH2)COO- ).IR studies indicated that the ligand was bonded with RE(Ⅲ) ions through two oxygen atoms in carboxy group. Ammo groups were not coordinated. The molar conductivities indicated that Cl- was coordinated with RE3+, coordination compounds were non-electrolyte. In the fluorescent spectra of [Tb (LH)2(L)C12] · 6H2O, it was found that Tb3+ had a strongly luminescent property. Particle diameter measured indicated that the coordination compounds were of nanometer level.

关 键 词：邻氨基苯甲酸 氯化稀土 配合物 固相合成 性质 纳米粉体 纳米材料 

分 类 号：O614.33[理学—无机化学] TB383[理学—化学]