Multiple photofluorochromic luminogens via catalyst-free alkene oxidative cleavage photoreaction for dynamic 4D codes encryption

Controllable photofluorochromic systems with high contrast and multicolor in both solutions and solid states are ideal candidates for the development of dynamic artificial intelligence. However, it is still challenging to realize multiple photochromism within one single molecule, not to mention good...

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Bibliographic Details
Published in:Nature communications 2024-05, Vol.15 (1), p.4647-11, Article 4647
Main Authors: Lu, Lin, Wu, Bo, He, Xinyuan, Zhao, Fen, Feng, Xing, Wang, Dong, Qiu, Zijie, Han, Ting, Zhao, Zheng, Tang, Ben Zhong
Format: Article
Language:English
Subjects:
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639/301/923/1028
639/638/298/923/1028
639/638/439/945
Artificial intelligence
Catalysts
Cleavage
Controllability
Emission
Emissions
Engineering
Fabrication
Humanities and Social Sciences
Information storage
Irradiation
Light
Light irradiation
multidisciplinary
Oxidants
Oxidation
Oxidizing agents
Photocatalysis
Photochromism
Polymers
Radiation
Science
Science (multidisciplinary)
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Summary:Controllable photofluorochromic systems with high contrast and multicolor in both solutions and solid states are ideal candidates for the development of dynamic artificial intelligence. However, it is still challenging to realize multiple photochromism within one single molecule, not to mention good controllability. Herein, we report an aggregation-induced emission luminogen TPE-2MO2NT that undergoes oxidation cleavage upon light irradiation and is accompanied by tunable multicolor emission from orange to blue with time-dependence. The photocleavage mechanism revealed that the self-generation of reactive oxidants driving the catalyst-free oxidative cleavage process. A comprehensive analysis of TPE-2MO2NT and other comparative molecules demonstrates that the TPE-2MO2NT molecular scaffold can be easily modified and extended. Further, the multicolor microenvironmental controllability of TPE-2MO2NT photoreaction within polymer matrices enables the fabrication of dynamic fluorescence images and 4D information codes, providing strategies for advanced controllable information encryption. Photochromic systems with high contrast and multiple colours are useful for responsive materials, but it is challenging to achieve multiple colours with one molecule. Here, the authors report a photochromic system controlled by oxidative cleavage on light irradiation.
ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-024-49033-2