Synthesis, characterization of the luminescent lanthanide complexes with (Z)-4-(4-methoxyphenoxy)-4-oxobut-2-enoic acid.
Spectrochim Acta A Mol Biomol Spectrosc, 2008/2;69(2):427-31.
Duan GJ[1], Yang Y, Liu TH, Gao YP
Affiliations
PMID: 17919971
Impact factor: 4.831
Abstract
(Z)-4-(4-Methoxyphenoxy)-4-oxobut-2-enoic acid and its solid rare earth complexes LnL3.2H2O (Ln=La, Eu, Tb) were synthesized and characterized by means of MS, elemental analysis, FTIR, 13C NMR and TG-DTA. The IR and 13C NMR results show that the carboxylic groups in the complexes coordinated to the rare earth ions in the form of a bidentate ligand, but the ester carboxylic groups have not taken part in the coordination. The luminescence spectra of Eu(III) and Tb(III) complexes in solid state were also studied. The strong luminescence emitting peaks at 616nm for Eu(III) and 547nm for Tb(III) can be observed, which could be attributed to the ligand has an enhanced effect to the luminescence intensity of the Eu and Tb.
MeSH terms
Butyrates; Lanthanoid Series Elements; Ligands; Luminescence; Magnetic Resonance Spectroscopy; Mass Spectrometry; Molecular Structure; Phenyl Ethers; Spectrometry, Fluorescence; Spectrophotometry, Infrared; Temperature
More resources
EndNote: Download