摘要
合成了5种新型镧掺杂铕的2,5-噻吩二羧酸(H2L)、1,10-菲咯啉(Phen)四元异核配合物,通过元素分析、TG-DTA、红外光谱法确定其组成为(EuxLay)2L3(Phen)2·4H2O(x∶y=0.90∶0.10、0.70∶0.30、0.50∶0.50、0.30∶0.70、0.10∶0.90),配体的羧基与稀土离子以螯合双齿配位。荧光光谱测试表明镧对铕的配合物有荧光浓聚效应。
Five new La-doped europium complexes with thiophene-2, 5-dicarboxylic acid (H2L) and 1, 10- phenanthroline(Phen) were synthesized and characterized by elemental analysis, TG-DTA and FT-IR spectra. The composition of the complexes is confirmed to be (EuxLay)2L3 (Phen)2 · 4H2O(x : y=0. 90 : 0. 10,0. 70 : 0. 30, 0. 50 : 0. 50,0. 30 : 0. 70, 0. 10 : 0. 90), and the results show that carboxyl of the ligand chelates with rare earth ions in chelating bidentate form. Observed from fluorescence spectra, lanthanum ions have an accumulative effect on europium complexes.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2011年第4期49-52,共4页
Materials Reports
基金
贵州省科技厅科技基金(黔科合J字(2005)2008号)
教育部春晖计划基金(Z2006-1-52007)
关键词
稀土
2
5噻吩二羧酸
1
10-菲咯啉
异核配合物
谱学性质
rare earth, thiophene-2,5 dicarboxylic acid, 1,10-phenanthroline, heteronuclear complex, spectro-scopic properties