水杨醛缩邻氨基苯酚稀土金属配合物的合成与表征  

Synthesis and Characterization of Rare Earth Complexes of Salicylaldehyde-o-Aminophenol

作　　者：程孟琪[1] 蔡铁军[1] 龙云飞[1] 彭振山[1] 容鸣柳[1] 

机构地区：[1]湖南科技大学化学化工学院

出　　处：《稀有金属》2005年第3期315-319,共5页Chinese Journal of Rare Metals

基　　金：湖南省科技厅自然科学基金科研项目(04JJ6003);湖南省教育厅科研项目(03C553)

摘　　要：报道了水杨醛缩邻氨基酚与La3+,Ce4+,Pr3+,Nd3+,Sm3+,Eu3+,Gd3+,Tb3+,Dy3+,Ho3+,Er3+,Tm3+,Yb3+,Lu3+等镧系稀土离子配合物的合成,通过红外光谱、紫外光谱、荧光光谱、摩尔电导、差热以及元素分析等对稀土配合物进行了表征,其组成分别为I:HML2·2H2O(M=La,Ce,Sm,Eu,Gd);II:ML·Y·X:(IIa:Y=H2O,M=Pr,Nd,Lu,X=Cl;M=Tb,X=NO3-。IIb:M=Dy,Ho,Er,Tm,Yb,Y=C2H5OH,X=Cl-),并推测了其可能的结构。还发现La3+和Lu3+对该配体有较强的激活作用,显著地增大了该配合物的荧光强度。Fourteen complexes of rare earths with salicylalde-o-aminophenol were synthesized. The properties of the complexes were characterized by element analysis, IR, UV, TG-DTA, luminescent spectra and molar conductance. The probable composition of these complexes are I: HML_2·2H_2O(M=La, Ce, Sm, Eu, Gd); II: ML·Y·X(IIa: Y=H_2O, M=Pr, Nd, Lu, X=Cl; M=Tb, X=NO_3^-. IIb: M=Dy, Ho, Er, Tm, Yb, Y=C_2H_5OH, X=Cl^-), respectively. The results show that salicylalde-o-aminophenol can coordinate with rare earth ions. The probable structures of the complexes were inferred. It is found that La^(3+) and Lu^(3+) have excitating effect on the ligand, increasing intensity of luminescent of the complexes markedly.

关 键 词：水杨醛缩邻氨基苯酚 稀土 配合物 合成 表征 

分 类 号：O641.4[理学—物理化学]