Enhanced Lasing Properties of Dissymmetric Eu(III) Complex with Bidentate Phosphine Ligands
作者:Kazuki Nakamura、Yasuchika Hasegawa、Hideki Kawai、Naoki Yasuda、Nobuko Kanehisa、Yasushi Kai、Toshihiko Nagamura、Shozo Yanagida、Yuji Wada
DOI:10.1021/jp067672h
日期:2007.4.1
The luminescent and lasing properties of Eu(III) complexes were enhanced by using an dissymmetric Eu(III) complex. The photophysical properties (the emission spectral shapes, the emission lifetimes, the emission quantum yields, and the stimulated emission cross section (SEC)) were found to be dependent on the geometrical structures of Eu(III) complexes. The geometrical structures of Eu(III) complexes
Eu(III)配合物的发光和激光发射性能通过使用不对称Eu(III)配合物得到增强。发现光物理性质(发射光谱形状,发射寿命,发射量子产率和受激发射截面(SEC))取决于Eu(III)配合物的几何结构。Eu(III)配合物的几何结构通过X射线单晶分析确定。发现Eu(hfa)3(BIPHEPO)的对称基团(三(六氟乙酰丙酮))(III)1,1'-联苯-2,2'-二基双(二苯基膦氧化物))比C1更不对称Eu(hfa)3(TPPO)2(三(六氟乙酰丙酮化)eur(III)1,2-亚苯基双(二苯基膦氧化物):C2对称)和Eu(hfa)3(OPPO)2(三(六氟乙酰丙酮化)eur(III) 1,2-亚苯基双(二苯基氧化膦):C2对称)。分析数据得到Judd-Ofelt分析的支持。最不对称的Eu(III)络合物Eu(hfa)3(BIPHEPO)显示出大的电子跃迁几率和SEC(4.64 x 10(-20)