用2,5-噻吩二羧酸、2,2’-联吡啶与稀土离子(RE=Eu,Dy,Pr)合成了稀土三元配合物。配合物分别用元素分析、差热分析和红外光谱分析进行了表征,确定了配合物组成为RE2L3L12.4H2O(RE=Eu,Dy,Pr,L=2,5-噻吩二羧酸,L1=2,2’-联吡啶)。荧光光谱研究表明,Eu配合物具有良好的荧光性能,最佳激发波长为394 nm,发射光谱为Eu3+的特征光谱,发光强度最高的是波长为614nm的5D0→7F2跃迁,峰形尖锐,半峰宽仅11nm,荧光光谱数据表明,铕配合物具有良好的荧光性能。 The rare earth ternary complex was synthesized with 2,5-thiophene dicarboxylic acid, 2,2’-bipyridyl and rare earth ions (RE = Eu, Dy, Pr). The complexes were characterized by elemental analysis, differential thermal analysis and infrared spectroscopy respectively. The complex was identified as RE2L3L12.4H2O (RE = Eu, Dy, Pr, L = 2,5-thiophenedicarboxylic acid, L1 = , 2’-bipyridine). Fluorescence spectroscopy studies show that Eu complexes have good fluorescence properties, the best excitation wavelength is 394 nm, the emission spectrum is the characteristic spectrum of Eu3 +, and the highest emission intensity is the 5D0 → 7F2 transition with a wavelength of 614 nm. The peak shape is sharp and the half peak The width is only 11nm, the fluorescence spectrum data show that the europium complex has a good fluorescence performance.