双核稀土配合物的合成及表征

The Synthesis and Characterization of Dinuelear Complexes of Rare Earth

以稀土 Eu^(3+)为发光中心,掺杂 La^(3+)、Ca^(2+)作为协同离子,以丁二酸和2,2′-联吡啶为配体,在乙醇介质中,合成了 Eu_(0.3)Ca_(0.7)(Su)_3、Eu_(0.5)Ca_(0.5)(Su)_3、Eu_(0.7)Ca_(0.3)(Su)_3、Eu_(0.7)Ca_(0.3)(Su)_3dipy、Eu_(0.3)La_(0.7)(Su)_3、Eu_(0.5)La_(0.5)(Su)_3、Eu_(0.7)La_(0.3)(Su)_3等七种双核稀土配合物,并利用荧光光谱、红外光谱、差热分析等手段进行了表征。

In ethanol, seven dinuelear rare earth complexes Eu0.3Ca0.7 （Su）3, Eu0.5Ca0.5 （Su）3, Eu0.7Ca0.3 （Su）3, Eu0.7Ca0.3 （Su）3dipy, Eu0.3 La0.7 （Su）3, Eu0.5 La0.5 （Su）3 and, Eu0.7 La0.3 （Su）3 have been synthesized by reaction of the luminescent center Eu^3＋ , the coordination ions La^3＋ and Ca^2＋ , ligands succinic acid and 2-2-dipyridyl. Each complexes can send the bright red light under the ultraviolet ray. Their structures have been characterized by IR, fluorescence spectrum and DTA.