Cyclometalated platinum(II) complex with C^N^N tridentate ligand as sensitizer for lanthanide luminescence
作者:Kun-Jiao Chen、Hai-Bing Xu、Li-Yi Zhang、Zhong-Ning Chen
DOI:10.1016/j.inoche.2009.06.004
日期:2009.8
photophysical properties of heterobinuclear complexes Pt(C^N^N)(C Cbpy)}Ln(hfac)3 (C^N^N = 2-(6-(naphthalen-3-yl)-4-phenylpyridin-2-yl)pyridine; HC Cbpy = 5-ethynyl-2,2′-bipyridine; Ln = Nd, Eu, Yb; hfac = hexafluoroacetylacetonate) are described. With excitation at 390 ⩽ λex ⩽ 500 nm which is the MLCT/LLCT absorption region of the Pt(C^N^N)(C Cbpy) chromophore, lanthanide luminescence is successfully attained
摘要 异双核配合物Pt(C^N^N)(C Cbpy)}Ln(hfac)3 (C^N^N = 2-(6-(naphthalen-3-yl)-)的制备、表征和光物理性质描述了 4-苯基吡啶-2-基)吡啶;HC Cbpy = 5-乙炔基-2,2'-联吡啶;Ln = Nd、Eu、Yb;hfac = 六氟乙酰丙酮)。在 390 ⩽ λex ⩽ 500 nm 处激发,这是 Pt(C^N^N)(C Cbpy) 发色团的 MLCT/LLCT 吸收区,通过 Pt → Ln 从铂 (II) 的能量转移成功获得镧系元素发光天线发色团穿过桥接 C Cbpy 配体到达镧系元素中心。