Synthesis, Characterization, and Photophysical Properties of Os(II) Diimine Complexes [Os(N∧N)(CO)<sub>2</sub>I<sub>2</sub>] (N∧N = Bipyridine, Phenanthroline, and Pyridyl Benzoxazole)
作者:Yao-Lun Chen、Shih-Wen Lee、Yun Chi、Kuo-Chu Hwang、Sujit Baran Kumar、Ya-Hui Hu、Yi-Ming Cheng、Pi-Tai Chou、Shie-Ming Peng、Gene-Hsiang Lee、Shi-Jay Yeh、Chin-Ti Chen
DOI:10.1021/ic050036y
日期:2005.6.1
A new series of Os(II) diimine complexes with the general formula [Os(N(wedge)N)(CO)(2)I(2)], N(wedge)N = 2,2'-bipyridine (bpy) (1), 4,4'-di-tert-butyl-2,2'-bipyridine (dbubpy) (2), 4,7-diphenyl-1,10-phenanthroline (dpphen) (3), 2-(2'-pyridyl)benzoxazole (pboz) (4), and 5-tert-butyl-2-(2'-pyridyl)benzoxazole (bupboz) (5), were synthesized and characterized by spectroscopic methods and by a single-crystal
一系列新的Os(II)二亚胺配合物,其通式为[Os(N(wedge)N)(CO)(2)I(2)],N(wedge)N = 2,2'-联吡啶(bpy) (1),4,4'-二叔丁基-2,2'-联吡啶(dbubpy)(2),4,7-二苯基-1,10-菲咯啉(dpphen)(3),2-(2合成了'-吡啶基)苯并恶唑(pboz)(4)和5-叔丁基-2-(2'-吡啶基)苯并恶唑(bupboz)(5),并通过光谱法和单晶X- dpphen配合物3的射线衍射研究。使用紫外可见光谱和发射光谱法研究了相应的光物理性质。结合MO计算,所得的磷光既在溶液中又在固体膜中均具有特征,我们得出的结论是,排放源来自混合卤化物-配体(XLCT约占70%)和金属-配体(MLCT约占30%)的过渡,而不是典型的MLCT过渡。使用配合物4和5作为掺杂物发射极,我们通过检查它们的电致发光性能,评估了它们作为有机发光二极管的磷光体的