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Selective Expression of Chromophores in a Single Molecule: Soft Organic Crystals Exhibiting Full-Colour Tunability and Dynamic Triplet-Exciton Behaviours.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2019-12-21 , DOI: 10.1002/anie.201915556
Wenlang Li 1 , Qiuyi Huang 1 , Zhu Mao 1 , Juan Zhao 1 , Huiyan Wu 1 , Junru Chen 1 , Zhan Yang 1 , Yang Li 2 , Zhiyong Yang 1 , Yi Zhang 1 , Matthew P Aldred 1, 3 , Zhenguo Chi 1
Affiliation  

Soft luminescent materials are attractive for optoelectronic applications, however, switching dominant chromophores for property enrichment remains a challenge. Herein, we report the first case of a soft organic molecule (DOS) featuring selective expression of chromophores. In response to various external stimuli, different chromophores of DOS can take turns working through conformation changes, exhibiting full-colour emissions peaking from 469 nm to 583 nm from ten individual single crystals. Dynamic triplet-exciton behaviours including thermally activated delayed fluorescence (TADF), room-temperature phosphorescence (RTP), mechanoluminescence (ML), and distinct mechano-responsive luminescence (MRL) can all be realized. This novel designed DOS molecule provides a multifunctional platform for detection of volatile organic compounds (VOCs), multicolour dynamic displays, sensing, anticounterfeiting, and hopefully many others.

中文翻译:

发色团在单个分子中的选择性表达:表现出全色可调谐性和动态三重态激子行为的软有机晶体。

软发光材料对于光电应用很有吸引力,但是,转换主要的生色团来实现特性富集仍然是一个挑战。本文中,我们报道了以发色团选择性表达为特征的软有机分子(DOS)的第一例。响应各种外部刺激,DOS的不同发色团可以轮流通过构象变化工作,表现出十个单晶的全色发射峰从469 nm到583 nm。可以实现动态三重态激子行为,包括热激活延迟荧光(TADF),室温磷光(RTP),机械发光(ML)和独特的机械响应发光(MRL)。这种新颖设计的DOS分子为检测挥发性有机化合物(VOC)提供了一个多功能平台,
更新日期:2020-01-23
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