希夫碱稀土配合物的紫外、荧光光谱研究

Studies on Ultraviolet and Fluouescence Spectra of Schiff Bases and Their Rare Earth Coordination Compounds

制备了由水杨醛及其5-位取代物与邻氨基苯酚生成的希夫碱,C6H4XOCH=NC6H5O（X=5-NO2,Br,Cl,H）并合成了类型为RE[C6H3XOCH=NC6H4O]2OOCCCl3·2H2O的希夫碱稀土配合物（RE=La,Nd,Gd）。用紫外可见分光光度计和荧光分光光度计详细研究了上述希夫碱及其稀土配合物的紫外可见光谱及荧光光谱。结果表明,配合物属L*→L发光类型。

Salicylaldehyde and its 5-Substituted derivate O-aminophenol Schiff bases,C_6H_4XOCH=NC_6H_5O(X=5-NO_2,5-Br, 5-Cl, 5- H)and their rare earth coordination compounds, RE(C_6H_3XOCH=NC_6H_4O)OOCCCl_3·2H_2O(R_E=La, Nd, Gd)have been prepared, Ultraviolet-visible and fluorescence Spectra of the above described compounds were studied in detail.The experimental result show that all the coordination compounds may be considered to as L~*→L luminescent type.