Synthesis, Characterization and Luminescent Properties of Rare Earth Complexes from (E)-2-[2-(4-Benzoate)ethenyl]-8-hydroxy-quinoline

被引：0
|
作者：
Sun R. [1 ]
Lü Y. [1 ]
Zhang M. [1 ]
Zhao G. [1 ,2 ]
机构：
[1] College of Chemistry and Life Science, Zhejiang Normal University, Jinhua
[2] Xingzhi College, Zhejiang Normal University, Jinhua
来源：
Zhongguo Xitu Xuebao/Journal of the Chinese Rare Earth Society | 2019年 / 37卷 / 06期
关键词：
(E)-2-[2-(4-benzoate)ethenyl]-8-hydroxy-quinoline; Complex; Fluorescence spectra; Rare earth;
D O I：
10.11785/S1000-4343.20190607
中图分类号：
学科分类号：
摘要：
Six rare earth complexes [Ln(NO3)(L)2](Ln=Nd, 1; Sm, 2; Eu, 3; Gd, 4; Tb, 5; Dy, 6) were synthesized from (E)-2-[2-(4-benzoate)ethenyl]-8-hydroxy-quinoline (HL, C19H15NO3) and rare earth nitrate salts Ln(NO3)3•nH2O (Ln=Nd, Sm, Eu, Gd, Tb, Dy). The ligand was characterized by IR, 1H NMR, elemental analysis and the structure was determined by single crystal X-ray diffraction. The complexes were characterized by elemental analysis, IR, molar conductance and TG. The fluorescence spectra of complexes and ligand were investigated at room temperature in solid state. The results showed that the ligand itself has strong fluorescence emission at 575 nm. When the complexes are formed, they still show the luminescence of the ligand itself without the characteristic luminescence of the rare earth center ions. At the same time, the degree of fluorescence enhancement or attenuation and a degree of red shift or blue shift are accompanied by according to the central ion. © 2019, Editorial Office of Journal of the Chinese Society of Rare Earths. All right reserved.
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页码：689 / 696
页数：7
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