铕、铽含氮杂环配合物的合成及荧光性能研究

Study on Synthesis and Fluorescence of Eu^(3+),Tb^(3+) Complex with Nitrogen Heterocycle

合成了稀土(Eu3+、Tb3+)的含氮杂环配合物,配合物组成经元素分析、TG-DTG及IR得到确认。研究了配合物的荧光性能,结果表明:配合物荧光强度比相应离子的有明显的增强;稀土硝酸盐配合物的荧光性能优于稀土盐酸盐、稀土高氯酸盐所得配合物的;稀土邻菲啉配合物的荧光强度比稀土联吡啶配合物的有明显增强;在混合配合物中,铽对铕的发光有一定的敏化作用,而铕对铽的发光有明显的猝灭作用。

Rare - earths complex of Eu^3＋ and Th^3＋ ions with nitrogen heterocycle were synthesized. The compositions and structures of complex were determined by elementary analysis, IR, TG- DTG. The fluorescence properties of the complex were also studied. The results show： the fluorescence intensity of complex are stronger than that of center ions; the fluorescence properties of complex of rare- earth nitrates are better than that of rare- earth chlorides and rare- earth perohlomte; the fluorescence intensity of Pben- complexes are stronger than that of Dipy- complexes; Th^3＋ ions display a very strong sensitization effect on Eu^3＋ ions, and Eu^3＋ ions shows a strong luminescence quenching effect on Tb^3＋ ions.