Synthesis and Spectroscopic Studies of Lanthanide(III) Complexes with (Z)-4-OXO-4-(Phenylamino) But-2-enoic Acid

被引：10
|
作者：
Niu, Li-E [1 ]
Yang, Ying [1 ]
Qi, Xin-Hua [1 ]
Liang, Xing [1 ]
机构：
[1] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China
来源：
SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY | 2009年 / 39卷 / 01期
关键词：
complexes; luninescence properties; synthesis; (Z)-4-oxo-4-(phenylamino)but-2-enoic acid; LUMINESCENT PROPERTIES; COORDINATION POLYMERS; ORGANIC FRAMEWORKS; FLUORESCENCE; NANOPARTICLES; MONODENTATE; CHELATE; EU(III); PROBES; IONS;
D O I：
10.1080/15533170802665419
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
(Z)-4-oxo-4-(phenylamino)but-2-enoic acid and its solid lanthanide complexes LnL3 nH2O(Ln = La,Eu,Tb,Yb) were synthesized and characterized by means of elemental analysis, FTIR,1H NMR and13C NMR spectra. The results show that the carboxylic groups in the complexes coordinated to the lanthanide ions in the form of a bidentate ligand, but the amide carbonyl group and amino N have not taken part in the coordination. The fluorescence spectra exhibits that the Eu3 + complex display characteristic metal-centered fluorescence in solid state while Tb3 + fluorescence is completely quenched, which is attributed to being especially effectively in transferring energy from the lowest triplet energy level of the ligands onto the excited state (5D0) of Eu3 + than that (5D4) of Tb 3 +.
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页码：1 / 5
页数：5
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