BowtieArene: A Dual Macrocycle Exhibiting Stimuli-Responsive Fluorescence.,Angewandte Chemie International Edition

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BowtieArene: A Dual Macrocycle Exhibiting Stimuli-Responsive Fluorescence.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2019-12-05 , DOI: 10.1002/anie.201913340
Sheng-Nan Lei _{1,

2} , Hongyan Xiao _{1,

2} , Yi Zeng _{1,

2} , Chen-Ho Tung _{1,

2} , Li-Zhu Wu _{1,

2} , Huan Cong _{1,

2}

Affiliation

Although highly useful in supramolecular chemistry, pillararenes lack a fluorophore in their skeleton. Here we present BowtieArene, a novel fluorescent dual macrocycle, featuring a central tetraphenylethylene‐derived fluorophore and two pillar‐like, pentagon‐shaped cavities which are comparable to pillar[5]arene. This concisely prepared, figure‐of‐eight molecule exhibits vapor absorption and host–guest capabilities, as well as intriguing switchable fluorescence. The fluorochromism of BowtieArene can be triggered by multiple external stimuli including solvent, vapor, and mechanical force, with excellent reversibility and stability. Experimental and theoretical evidence indicate that the fluorochromism should be closely related to molecular packing.

中文翻译：

BowtieArene：双重双环大分子，显示刺激响应性荧光。

尽管柱上芳烃在超分子化学中非常有用，但其骨架中缺少荧光团。在这里，我们介绍BowtieArene，这是一种新型的荧光双大环化合物，具有中心四苯基乙烯衍生的荧光团和两个类似于柱[5] arene的柱状，五边形空腔。这种简明扼要，八位数的分子具有蒸气吸收和主客体功能，以及引人入胜的可转换荧光。可以通过多种外部刺激（包括溶剂，蒸汽和机械力）触发BowtieArene的荧光致变色，具有出色的可逆性和稳定性。实验和理论证据表明，荧光变色应与分子堆积紧密相关。

更新日期：2019-12-05

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