Bridged Stilbenes: AIEgens Designed via a Simple Strategy to Control the Non-radiative Decay Pathway.,Angewandte Chemie International Edition

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Bridged Stilbenes: AIEgens Designed via a Simple Strategy to Control the Non-radiative Decay Pathway.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-03-02 , DOI: 10.1002/anie.202000943
Riki Iwai ₁ , Satoshi Suzuki ₂ , Shunsuke Sasaki ₃ , Amir Sharidan Sairi ₁ , Kazunobu Igawa ₄ , Tomoyoshi Suenobu ₅ , Keiji Morokuma ₂ , Gen-Ichi Konishi ₁

Affiliation

To broaden the application of aggregation‐induced emission (AIE) luminogens (AIEgens), the design of novel small‐molecular dyes that exhibit high fluorescence quantum yield (Φ_fl) in the solid state is required. Considering that the mechanism of AIE can be rationalized based on steric avoidance of non‐radiative decay pathways, a series of bridged stilbenes was designed, and their non‐radiative decay pathways were investigated theoretically. Bridged stilbenes with short alkyl chains exhibited a strong fluorescence emission in solution and in the solid state, while bridged stilbenes with long alkyl chains exhibited AIE. Based on this theoretical prediction, we developed the bridged stilbenes BPST[7] and DPB[7], which demonstrate excellent AIE behavior.

中文翻译：

桥接的斯蒂芬苯甲醛：通过简单的策略设计的AIEgens，用于控制非辐射衰变途径。

拓宽聚合诱导的发射（AIE）luminogens（AIEgens）的应用，显示出高荧光量子产率（Φ新型小分子染料的设计_FL需要在固体状态）。考虑到可以基于空间上避免非辐射衰变途径来合理化AIE的机理，设计了一系列桥连对苯二酚，并对它们的非辐射衰变途径进行了理论研究。具有短烷基链的桥墩石es素在溶液和固态下均表现出较强的荧光发射，而具有长烷基链的桥墩石til素具有AIE。基于这一理论预测，我们开发了桥接的斯蒂芬酯BPST [7]和DPB [7]，它们表现出优异的AIE行为。

更新日期：2020-03-02

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