【摘要】 利用稀土元素铽和钆的氯化物与2,4,6-吡啶三甲酸在170°C的水热条件下反应,合成了钆掺杂铽的系列配合物,其中铽钆比分别为1.0∶0,0.9∶0.1,0.8∶0.2,0.7∶0.3,0.6∶0.4,0.5∶0.5,0.4∶0.6.测定了配合物的熔点和红外光谱,用配位滴定法确定了配合物中稀土离子的总含量,测试了配合物的荧光激发光谱和发射光谱,讨论了稀土钆离子掺杂到铽配合物后对配合物发光性能的影响.研究表明,铽配合物中掺杂不发光的稀土钆离子后,配合物仍能发射铽配合物的特征荧光,并且在一定比例范围内对铽的发光具有敏化作用.更多还原

【Abstract】 A series of terbium complexes with 2,4,6-pyridinetricarboxylate doped with gadolinium were synthesized by reacting terbium chloride,gadolinium chloride at 170 °C hydrothermal condition.The proportions of terbium and gadolinium were 1.0∶0,0.9∶0.1,0.8∶0.2,0.7∶0.3,0.6∶0.4,0.5∶0.5,0.4∶0.6.Melting points and infrared spectra of the complexes were determined.The contents of rare earth ions in the complexes were determined by EDTA complexometric titration.Excitation and emission spectra of the complexes were tested with solid samples.The research shows that when gadolinium is put into terbium complexes of mixed light rave earth ion,complexes can still launch of terbium complexes characteristic fluerescence light,and within the scope of a certain proportion it has luminescence sensitization to terbium.更多还原