As the luminescence from conventional organic luminophores is typically quenched in constrained environments, the aggregation-induced emission (AIE) phenomenon is of interest for the development of materials that exhibit strong luminescence in condensed phases. Herein, new bismesogenic Au complexes were developed as organogelators and their photophysical properties, including their AIE characteristics, were investigated in organogels and crystals. The crystals of the gold complexes exhibited room-temperature phosphorescence with relatively high quantum yields. Moreover, the gold complexes also showed photoluminescence in the organogels and we demonstrated that the reversible switching of the luminescence intensity was induced by the sol-gel phase transition. The intense photoluminescence in the crystal and gel was induced by the restricted internal motion of the luminophore in the molecular aggregates. However, in the sol, the network structure of the organogel was destroyed and the nonradiative deactivation of the excited states was enhanced. As a result, we can conclude that the switching of the luminescence intensity was induced by changes in the aggregated structures of the molecules. The developed Au-complex-based gelators are excellent candidates for the realization of stimuli-responsive soft and smart luminescent materials.

中文翻译：

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包含介晶Au（I）配合物的有机胶凝剂的刺激敏感性聚集诱导发射。

由于常规有机发光体的发光通常在受限的环境中淬灭，因此聚集诱导发射（AIE）现象对于开发在凝聚相中表现出强发光的材料非常重要。在本文中，开发了新的双双生金络合物作为有机胶凝剂，并在有机凝胶和晶体中研究了它们的光物理性质，包括其AIE特性。金络合物的晶体表现出具有相对高的量子产率的室温磷光。此外，金配合物在有机凝胶中也显示出光致发光，并且我们证明了发光强度的可逆转换是由溶胶-凝胶相变引起的。晶体和凝胶中强烈的光致发光是由分子团聚体中发光体的受限内部运动引起的。然而，在溶胶中，有机凝胶的网络结构被破坏，激发态的非辐射失活得到增强。结果，我们可以得出结论，发光强度的切换是由分子聚集结构的变化引起的。研发的基于Au络合物的胶凝剂是实现刺激响应性柔软智能发光材料的绝佳候选者。我们可以得出结论，发光强度的切换是由分子聚集结构的变化引起的。研发的基于Au络合物的胶凝剂是实现刺激响应性柔软智能发光材料的绝佳候选者。我们可以得出结论，发光强度的切换是由分子聚集结构的变化引起的。研发的基于Au络合物的胶凝剂是实现刺激响应性柔软智能发光材料的绝佳候选者。