Blue Luminescent Copper(I) Complexes Bearing a Diphosphine Dioxide Ligand and Enhancement of Emission in the Solid State Under Argon
Blue Luminescent Copper(I) Complexes Bearing a Diphosphine Dioxide Ligand and Enhancement of Emission in the Solid State Under Argon
复制标题
带有二氧化二膦配体的蓝色发光铜(I)配合物及其在氩气下固态发光的增强
DOI：
10.1002/ejic.201601293
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
and T. Tsubomura
中科院分区：
文献类型：
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作者：
T. Nishi;M. Nishikawa;and T. Tsubomura
合成了一系列含双（二苯基磷酰基）酰胺（dppaO 2-）和双膦配体的铜（I）配合物，并研究了它们的物理化学性质。[Cu（dppaO 2）（DPEphos）] {DPEphos =双[2-（二苯基膦基）苯基]醚}和[Cu（dppaO 2）（XANTPHOS）] [XANTPHOS = 9，9-二甲基-4，5-双（二苯基膦基）氧杂蒽]两种配合物在固态下分别显示明亮的白色-蓝色和深蓝色发光。[Cu（dppaO_2）（XANTPHOS）]的量子产率在氩气和空气中分别为0.76和0.38。固态下氩气中的发射衰减曲线[τ= 7.9（17%），30.0 μs（83%）]比空气中的发射衰减曲线[τ= 2.5（19%），13.9 μs（81%）]长。结合DFT和含时DFT（TD-DFT）计算结果讨论了配合物的物理性质.
A series of copper(I) complexes bearing a bis(diphenylphosphoryl)amide (dppaO2–) ligand and a diphosphine ligand were synthesized, and their photophysical properties were investigated. Two complexes, [Cu(dppaO2)(DPEphos)] {DPEphos = bis[2‐(diphenylphosphanyl)phenyl] ether} and [Cu(dppaO2)(XANTPHOS)] [XANTPHOS = 9,9‐dimethyl‐4,5‐bis(diphenylphosphanyl)xanthene], show bright white‐blue and deep blue luminescence, respectively, in the solid state. The quantum yield of [Cu(dppaO2)(XANTPHOS)] is 0.76 under argon and 0.38 under air. The emission decay curves under argon [τ= 7.9 (17 %), 30.0 µs (83 %)] in the solid state are longer than those under air [τ= 2.5 (19 %), 13.9 µs (81 %)]. The photophysical properties of the complexes are discussed together with the results of DFT and time‐dependent DFT (TD‐DFT) calculations.