ArticleAngewandte Chemie (International ed. in English)2024
Aza-Diarylethenes Undergoing Both Photochemically and Thermally Reversible Electrocyclic Reactions.
Article in Angewandte Chemie (International ed. in English), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Multi-Stimuli-Responsive Circularly Polarized Luminescence with Handedness Inversion and Near-Infrared Phosphorescence in Chiral Metal-Organic Framework Platform for White Light Emission and Information Encryption.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Effect of substitution position of aryl groups on the thermal back reactivity of aza-diarylethene photoswitches and prediction by density functional theory.Beilstein journal of organic chemistry · 2025Article
- Aza-Diarylethenes Undergoing Both Photochemically and Thermally Reversible Electrocyclic Reactions.Angewandte Chemie (International ed. in English) · 2024Article
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3 authors.
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Abstract
Exploring novel molecular photoswitches plays a crucial role in the field of photo-functional materials chemistry. In this study, we synthesized aza-diarylethenes with benzothiophene-S,S-dioxide as a part of the hexatriene structure and investigated their photochromic properties. Unlike previously reported aza-diarylethenes, which exhibit fast thermally reversible photochromism, the compounds synthesized here exhibited pseudo-photochemically reversible photochromism. Due to their thermal stability, we successfully isolated the colored isomer. X-ray crystallographic analysis revealed for the first time that the colored isomer adopts a closed-ring structure with a bond between carbon and nitrogen atoms. Remarkably, these aza-diarylethenes exhibited not only photochemical ring-closing and ring-opening reactions but also thermal ring-closing and ring-opening reactions, driven by a thermal equilibrium between the open- and closed-ring isomers. This behavior, unprecedented for common diarylethenes, was elucidated through kinetic analysis, revealing an energy-level diagram for the thermal equilibrium between these isomers. Furthermore,
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