spectrometry, and single-crystal X-ray analysis. The complexes show strong luminescence in the yellow–orange region in ethanol at room temperature (quantum yield is up to 22 %), and absorb light up to 550 nm with molar absorptivities of 1500–2000 M–1 cm–1. Complexes 1 and 2 possess very similar optical properties, whereas the introduction of the phenyl ring (complex 3) causes a hypsochromic shift (≈ 30 nm) of
一系列双环
金属化
铱 (III) 配合物 [Ir(LH)2(H2dcbpy)][PF6] (1)、[Ir(LMe)2(H2dcbpy)][PF6] (2) 和 [Ir( LPh)2(H2dcbpy)][PF6] (3),其中 LH = 1-H-
2-苯基苯并咪唑,LMe =
1-甲基-2-苯基苯并咪唑,LPh =
1,2-二苯基苯并咪唑,H2dcbpy = 2,2' -bipyridine-4,4'-二
羧酸,已合成并通过元素分析、1H 和 31P NMR 光谱、质谱和单晶 X 射线分析进行了充分表征。该配合物在室温下在
乙醇中的黄橙色区域显示出强烈的发光(量子产率高达 22%),并吸收高达 550 nm 的光,摩尔吸收率为 1500-2000 M-1 cm-1。配合物 1 和 2 具有非常相似的光学性质,