Sinha Pankaj, Wilson Angela K, Omary Mohammad A
Department of Chemistry, University of North Texas, Denton, Texas 76203-5070, USA.
J Am Chem Soc. 2005 Sep 14;127(36):12488-9. doi: 10.1021/ja053895u.
Varying the steric bulk of either the phosphine or the halide in Au(PR3)2X complexes allows intuitive tuning of the phosphorescence energy to multiple visible colors, including the coveted blue for LED applications. The excited-state structure involves distortion of the trigonal coordination sphere beyond a T-shape. The [Au(TPA)2]Cl complex exhibits orange phosphorescence due to exciplex formation with the counterion to form the same type of excited state, representing the first example of a luminescent two-coordinate Au(I) complex in absence of both Au...Au interactions and aromatic moieties.
在Au(PR₃)₂X配合物中改变膦或卤化物的空间位阻，可直观地将磷光能量调节到多种可见颜色，包括用于发光二极管应用所渴求的蓝色。激发态结构涉及三角配位球超出T形的畸变。[Au(TPA)₂]Cl配合物由于与抗衡离子形成激基复合物以形成相同类型的激发态而呈现橙色磷光，这代表了在不存在金……金相互作用和芳香族部分的情况下发光二配位金(I)配合物的首个例子。
