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本文以2,6-二(4-乙氧基苯甲酰基)吡啶(L)和1,10-邻菲罗琳为配体,设计并制备了新型的稀土铕离子三元配合物EuL(Phen)2(Phen=1,10-邻菲罗啉),通过核磁共振氢谱和红外光谱对结构进行了表征。研究表明,配合物具有很好的溶剂化效应,溶液体系的荧光强度与溶剂的极性有关,极性越小体系荧光强度越大;固体配合物在593nm和620nm处有较强的Eu~(3+)特征发射峰,以620nm处的荧光强度最强,2处峰强度比值为4.57,配合物单色性较好,是一种具有很好的应用前景的红光材料。
In this paper, a new rare earth europium ternary complex EuL (Phen) was designed and prepared by using 2,6-bis (4-ethoxybenzoyl) pyridine (L) and 1,10- ) 2 (Phen = 1, 10-o-phenanthroline), the structure was characterized by 1H-NMR and IR spectra. The results show that the complex has a good solvating effect, the fluorescence intensity of the solution system is related to the polarity of the solvent, and the smaller the polarity, the greater the fluorescence intensity of the system. The solid complexes have stronger Eu ~ (-) at 593nm and 620nm 3+) emission peak. The fluorescence intensity at 620 nm was the strongest, the peak intensity ratio at 2 was 4.57, and the monochromaticity of the complex was good. It is a promising red material.