Lv Yuguang, Zhang Jingchang, Cao Weiliang, Juan Joon Ching, Zhang Fujun, Xu Zheng
Institute of Modern Catalysis, Beijing University of Chemical Technology, State Key Laboratory of Chemical Resource Engineering, Beijing 100029, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2007 Oct;68(2):382-6. doi: 10.1016/j.saa.2006.12.006. Epub 2006 Dec 8.
Rare-earth ternary complexes Eu(X)Y(1-X)(TTA)3Dipy {X=0, 0.1, 0.25, 0.5, 0.75, 0.9, 1.0, using thenoyltrifluoroacetone (TTA) as ligand and 2,2'-dipyridyl (Dipy) as synergic agent} were synthesized. Characterization with X-ray diffraction (XRD), IR and elemental analysis had also been carried out. The photophysical properties of these complexes were studied in detail with ultraviolet absorption spectra and fluorescent spectra. It is found that the enhanced luminescence of Eu(3+) ions by Y(3+) ions occurs in ternary complexes. And we monitored the spectra of Eu(X)Y(1-X)(TTA)3Dipy (PVK:Eu/BCP/AlQ/Al) at the different rate (rpm). The results showed that the Y(3+) ion acts as an energy transfer bridge that helps energy transfer from PVK to Eu(3+).
合成了稀土三元配合物Eu(X)Y(1-X)(TTA)3Dipy {X = 0、0.1、0.25、0.5、0.75、0.9、1.0，使用噻吩甲酰三氟丙酮(TTA)作为配体，2,2'-联吡啶(Dipy)作为协同剂}。还进行了X射线衍射(XRD)、红外光谱和元素分析表征。利用紫外吸收光谱和荧光光谱详细研究了这些配合物的光物理性质。发现在三元配合物中Y(3+)离子增强了Eu(3+)离子的发光。并且我们监测了Eu(X)Y(1-X)(TTA)3Dipy (PVK:Eu/BCP/AlQ/Al)在不同转速(rpm)下的光谱。结果表明，Y(3+)离子作为能量传递桥梁，有助于能量从PVK传递到Eu(3+)。
