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Photooxidation of IR‐820 by Calixpyridinium‐Induced Assembled Material and Its pH‐Controlled Visual Multicolor Luminescence

Photooxidation of IR‐820 by Calixpyridinium‐Induced Assembled Material and Its pH‐Controlled... In this work, a spherical calixpyridinium–IR‐820 supramolecular assembled material was fabricated based on the calixpyridinium‐ induced IR‐820 aggregation. This assembled material exhibited a well visible light responsiveness by the photodecomposition of aggregated IR‐820 accompanied by an obvious color change. Such photochromic material has many potential applications. More interestingly, the photodecomposition of aggregated IR‐820 was significantly promoted, although the aggregated photosensitizers usually exhibited a lower photoreactivity. This approach can be further extended to construct various visible‐light responsive supramolecular assembled materials and potentially applied in many fields. Herein, benefitting from the pH‐dependent luminescent properties of calixpyridinium and the photodegradation products of IR‐820, a pH‐controlled visual multicolor luminescence was achieved, which was perfectly applied in the detection of pH from 5 to 10 by naked eyes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chinese Journal of Chemistry Wiley

Photooxidation of IR‐820 by Calixpyridinium‐Induced Assembled Material and Its pH‐Controlled Visual Multicolor Luminescence

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References (12)

Publisher
Wiley
Copyright
© 2022 SIOC, CAS, Shanghai, & WILEY‐VCH GmbH
eISSN
1614-7065
DOI
10.1002/cjoc.202100802
Publisher site
See Article on Publisher Site

Abstract

In this work, a spherical calixpyridinium–IR‐820 supramolecular assembled material was fabricated based on the calixpyridinium‐ induced IR‐820 aggregation. This assembled material exhibited a well visible light responsiveness by the photodecomposition of aggregated IR‐820 accompanied by an obvious color change. Such photochromic material has many potential applications. More interestingly, the photodecomposition of aggregated IR‐820 was significantly promoted, although the aggregated photosensitizers usually exhibited a lower photoreactivity. This approach can be further extended to construct various visible‐light responsive supramolecular assembled materials and potentially applied in many fields. Herein, benefitting from the pH‐dependent luminescent properties of calixpyridinium and the photodegradation products of IR‐820, a pH‐controlled visual multicolor luminescence was achieved, which was perfectly applied in the detection of pH from 5 to 10 by naked eyes.

Journal

Chinese Journal of ChemistryWiley

Published: May 1, 2022

Keywords: Macrocycles; Luminescence; Supramolecular chemistry; Calixpyridinium; Light responsiveness

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