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首页> 外文期刊>Chemistry: A European journal >Blue/red linear dichroic emission from a highly anisotropic crystal of triarylmethane dye conjugated with phenoxo-zinc complexes
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Blue/red linear dichroic emission from a highly anisotropic crystal of triarylmethane dye conjugated with phenoxo-zinc complexes

机译：三芳基甲烷染料与苯氧基-锌配合物共轭的高度各向异性晶体的蓝/红线性二向色性发射

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摘要

We have developed a novel triphenylmethane-based hexanuclear zinc complex that exhibits peculiar photochemical and photophysical properties. Upon UV irradiation, the compound turned from colorless to reddish purple, while the color of emission turned from blue to red. The color change was attributed to an oxidation of the ligand part. It was suggested that an intramolecular energy-transfer mechanism operates to give rise to the red emission. The UV treatment of a single crystal results in simultaneous emission of orthogonally polarized blue and red light. This color switching, namely linear dichroic emission was so distinct that one can recognize with by sight through optical microscope. The columnar arrangement of molecules in the crystal clearly accounts for the observed polarization of the emission.
机译：我们已经开发出一种新颖的基于三苯甲烷的六核锌配合物，该配合物表现出独特的光化学和光物理性质。在紫外线照射下，化合物从无色变成红紫色，而发射的颜色从蓝色变成红色。颜色变化归因于配体部分的氧化。有人提出，分子内的能量转移机制会引起红色发射。单晶的紫外线处理会导致同时发射正交偏振的蓝光和红光。这种颜色切换（即线性二向色性发射）非常明显，以至于可以通过光学显微镜目视识别。晶体中分子的柱状排列清楚地说明了观察到的发射极化。

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