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AIE‐Active Chiral [3]Rotaxanes with Switchable Circularly Polarized Luminescence
Author(s) -
Li WeiJian,
Gu Qingyi,
Wang XuQing,
Zhang DanYang,
Wang YuTe,
He Xiao,
Wang Wei,
Yang HaiBo
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202100934
Subject(s) - luminescence , chirality (physics) , photoluminescence , pillar , materials science , circular polarization , optoelectronics , photochemistry , nanotechnology , chemistry , physics , optics , chiral symmetry , structural engineering , quantum mechanics , nambu–jona lasinio model , engineering , quark , microstrip
The construction of circularly polarized luminescence (CPL) switches with multiple switchable emission states and high dissymmetry factors ( g lum ) has attracted increasing attention due to their broad applications in diverse fields such as the development of smart devices and sensors. Herein, a new family of AIE‐active chiral [3]rotaxanes were designed and synthesized, from which a novel CPL switching system was successfully constructed. The switching process was realized through the controlled motions of the chiral pillar[5]arene macrocycles along the axle through the addition or removal of the acetate anions, which not only modulated the chirality information transfer but also tuned the aggregations of the integrated [3]rotaxanes, thus resulting in reversible transformations between two emission states with both high photoluminescence quantum yields (PLQYs) and high dissymmetry factors ( g lum ) values.