Volume 61, Issue 44 e202210542
Research Article

Multistate Circularly Polarized Luminescence Switching through Stimuli-Induced Co-Conformation Regulations of Pyrene-Functionalized Topologically Chiral [2]Catenane

Yu Wang

Yu Wang

Shanghai Key Laboratory of Green Chemistry and Chemical Processes &, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses &, Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062 China

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Jiacheng Gong

Jiacheng Gong

Shanghai Key Laboratory of Green Chemistry and Chemical Processes &, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses &, Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062 China

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Dr. Xianwei Wang

Dr. Xianwei Wang

Shanghai Key Laboratory of Green Chemistry and Chemical Processes &, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses &, Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062 China

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Dr. Wei-Jian Li

Dr. Wei-Jian Li

Shanghai Key Laboratory of Green Chemistry and Chemical Processes &, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses &, Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062 China

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Dr. Xu-Qing Wang

Dr. Xu-Qing Wang

Shanghai Key Laboratory of Green Chemistry and Chemical Processes &, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses &, Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062 China

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Prof. Dr. Xiao He

Corresponding Author

Prof. Dr. Xiao He

Shanghai Key Laboratory of Green Chemistry and Chemical Processes &, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses &, Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062 China

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Prof. Dr. Wei Wang

Corresponding Author

Prof. Dr. Wei Wang

Shanghai Key Laboratory of Green Chemistry and Chemical Processes &, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses &, Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062 China

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Prof. Dr. Hai-Bo Yang

Corresponding Author

Prof. Dr. Hai-Bo Yang

Shanghai Key Laboratory of Green Chemistry and Chemical Processes &, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses &, Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062 China

Institute of Eco-Chongming, Shanghai, 202162 China

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First published: 24 August 2022
Citations: 83

Graphical Abstract

By using topologically chiral [2]catenanes as not only the chiral platform but also the switching scaffold, the first construction of a novel bidirectional circularly polarized luminescence switching system was successfully realized.

Abstract

Aiming at the construction of novel circularly polarized luminescence (CPL) switches with multiple switchable emission states and high dissymmetry factors (glum), topologically chiral [2]catenanes were employed as the key platform to construct a novel multistate CPL switching system. Taking advantage of the precise co-conformation regulations of the resultant pyrene-functionalized [2]catenanes under different external stimuli, reversible transformations between three emission states with different CPL performances, i.e. the initial “closed” form with a |glum| value of 0.012, the “open” form with an almost complete turn-off of CPL emission, and the “protonated” form with a boosted |glum| value of 0.022, were successfully realized. This study demonstrates the successful construction of not only the first topological chirality-based CPL switch, but also a novel bidirectional CPL switch, thus providing a promising platform for the construction of novel chiral materials.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

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