Eu（TTA）3·1／2（4，4′－bipyN_2O_2）配合物的发光光谱

LUMINESCENCE SPECTRA OF Eu(TTA) 3·1/2(4,4′ bipyN 2O 2) COMPLEX

在７７Ｋ下测定了Ｅｕ（ＴＴＡ）３·１／２（４，４′－ｂｉｐｙＮ２Ｏ２）配合物的激发光谱、发光光谱和时间分辨光谱。光谱数据表明，在标题配合物中存在化学环境不同的两种Ｅｕ３＋格位，但它们的局部对称性都属于Ｃ２Ｖ点群。

his paper reports the high resolution laser excited excitation, luminescence and time resolved luminescence spectra of complex Eu(TTA) 3·1/2(4,4′ bipyN 2O 2) at 77K. Spectrum data show that the complex possesses two Eu 3+ sites with an energy difference of 9 cm -1 of 5 D 0 levels in excited state. Their local symmetries of both sites, however, are C 2v . This may be understood that a slight difference in electronic structure exists between the two sites of excited state.