Fluoride-regulated colorimetric and fluorometric switch through B–F dynamic covalent reactions of AIEgens

Zhu, Yan; Ping, Xinni; Wang, Xiangting; Zuo, Jiaqi; Qian, Zhaosheng; Hong, Feng; Cai, Xuting

doi:10.1039/d2me00244b

Cited by 1 publication

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“…Regulating the photophysical processes of B-PAH derivatives is a powerful strategy to understand the luminescence mechanism and develop new materials and applications 9 – 13 . For example, a plane-to-bowl conversion accompanied by a significant electronic perturbation has been reported when the coordination number of the boron was changed from tri-coordination to tetra-coordination induced by the addition of an external Lewis base 14 – 16 . The new complex can be detected by adding phosphorus-embedded π-system to the borole-embedded polycyclic π-system, which exhibited interesting behavior in response to photoirradiation, along with dynamic B–P bond in excited state 17 .…”

Section: Introductionmentioning

confidence: 99%

An electrochemically responsive B–O dynamic bond to switch photoluminescence of boron-nitrogen-doped polyaromatics

Yang,

Zhang,

Wang

et al. 2024

Nat Commun

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Boron-doped polycyclic aromatic hydrocarbons exhibit excellent optical properties, and regulating their photophysical processes is a powerful strategy to understand the luminescence mechanism and develop new materials and applications. Herein, an electrochemically responsive B–O dynamic coordination bond is proposed, and used to regulate the photophysical processes of boron-nitrogen-doped polyaromatic hydrocarbons. The formation of the B–O coordination bond under a suitable voltage is confirmed by experiments and theoretical calculations, and B–O coordination bond can be broken back to the initial state under opposite voltage. The whole process is accompanied by reversible changes in photophysical properties. Further, electrofluorochromic devices are successfully prepared based on the above electrochemically responsive coordination bond. The success and harvest of this exploration are beneficial to understand the luminescence mechanism of boron-nitrogen-doped polyaromatic hydrocarbons, and provide ideas for design of dynamic covalent bonds and broaden material types and applications.

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Section: Introductionmentioning

confidence: 99%

An electrochemically responsive B–O dynamic bond to switch photoluminescence of boron-nitrogen-doped polyaromatics

Yang,

Zhang,

Wang

et al. 2024

Nat Commun

View full text Add to dashboard Cite

show abstract

Fluoride-regulated colorimetric and fluorometric switch through B–F dynamic covalent reactions of AIEgens

Abstract: It is extremely challenging to design external stimuli-controlled molecular switches with absorption and fluorescence dual-mode outputs suited for diverse states. Herein, we propose a general molecular design strategy to achieve...

Cited by 1 publication

References 44 publications

An electrochemically responsive B–O dynamic bond to switch photoluminescence of boron-nitrogen-doped polyaromatics

An electrochemically responsive B–O dynamic bond to switch photoluminescence of boron-nitrogen-doped polyaromatics

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