含（Z）-4-（4-甲氧基苯氧基）-4-氧代丁-2-烯酸的发光镧系配合物的合成与表征
Synthesis, characterization of the luminescent lanthanide complexes with (Z)-4-(4-methoxyphenoxy)-4-oxobut-2-enoic acid.
作者信息
Duan Guo-Jian, Yang Ying, Liu Tong-Huan, Gao Ya-Ping
机构信息
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2008 Feb;69(2):427-31. doi: 10.1016/j.saa.2007.04.017. Epub 2007 Apr 24.
(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.
合成了(Z)-4-(4-甲氧基苯氧基)-4-氧代丁-2-烯酸及其固态稀土配合物LnL₃·2H₂O（Ln = La、Eu、Tb），并通过质谱、元素分析、傅里叶变换红外光谱、¹³C核磁共振和热重-差示热分析对其进行了表征。红外光谱和¹³C核磁共振结果表明，配合物中的羧基以双齿配体的形式与稀土离子配位，但酯羧基未参与配位。还研究了Eu(III)和Tb(III)配合物的固态发光光谱。可以观察到Eu(III)在616nm和Tb(III)在547nm处有很强的发光发射峰，这可归因于配体对Eu和Tb的发光强度有增强作用。
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