Visible‐Light‐Driven [2+2] Photocycloaddition in Self‐Assembled State for Time‐Resolved Information Encryption DOI Open Access
Meixia He, C. G. Ding, Zhiyuan Han

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 22, 2025

Abstract Achieving time‐resolved information encryption is crucial for advanced functional materials but remains a formidable challenge. Photoresponsive supramolecular assemblies have gained attention as promising candidates in this area. This work presents unique strategy that employs α ‐cyanostilbenes to construct photoresponsive which enable finely regulating fluorescence color and photoresponse kinetics, facilitating effective encryption. Three 1 – 3 are designed by the combination of electron donor 3,4‐ethoxylene dioxythiophene appended benzaldehyde with acceptor phenylacetonitrile different substituents. All three compounds undergo reversible Z/E isomerization CH CN under 420 254 nm light irradiation. Interestingly, while CN/H 2 O high water content (95%), these found be able self‐assemble into spherical reduced molecular distances. Remarkably, upon exposure visible light, [2+2] cycloadditions occur within assemblies, exhibiting distinct kinetics variations due formation cycloaddition products, confirmed H NMR spectroscopy, high‐resolution mass spectrometry, single crystal structures. Furthermore, their changes demonstrate potential applications hydrogel‐based photo‐patterning. research offers compelling designing visible‐light‐driven fluorescent switching high‐level beyond.

Language: Английский

Visible‐Light‐Driven [2+2] Photocycloaddition in Self‐Assembled State for Time‐Resolved Information Encryption DOI Open Access
Meixia He, C. G. Ding, Zhiyuan Han

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 22, 2025

Abstract Achieving time‐resolved information encryption is crucial for advanced functional materials but remains a formidable challenge. Photoresponsive supramolecular assemblies have gained attention as promising candidates in this area. This work presents unique strategy that employs α ‐cyanostilbenes to construct photoresponsive which enable finely regulating fluorescence color and photoresponse kinetics, facilitating effective encryption. Three 1 – 3 are designed by the combination of electron donor 3,4‐ethoxylene dioxythiophene appended benzaldehyde with acceptor phenylacetonitrile different substituents. All three compounds undergo reversible Z/E isomerization CH CN under 420 254 nm light irradiation. Interestingly, while CN/H 2 O high water content (95%), these found be able self‐assemble into spherical reduced molecular distances. Remarkably, upon exposure visible light, [2+2] cycloadditions occur within assemblies, exhibiting distinct kinetics variations due formation cycloaddition products, confirmed H NMR spectroscopy, high‐resolution mass spectrometry, single crystal structures. Furthermore, their changes demonstrate potential applications hydrogel‐based photo‐patterning. research offers compelling designing visible‐light‐driven fluorescent switching high‐level beyond.

Language: Английский

Citations

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