The efficiency of quenching of fluorescence was as high as 95% at the photostationary state of UV irradiation.
📌 3 Key Takeaways
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Objective & Hypothesis:Four new fulgimides possessing a fluorescent coumarin unit were synthesized from the corresponding fulgides, and their photochromic as well as fluorescence properties were investigated.
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Key Findings & Data:The open-ring forms of coumarin fulgimides were found to exhibit fluorescence in the visible region.
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Conclusion & Impact:The efficiency of quenching of fluorescence was as high as 95% at the photostationary state of UV irradiation.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Photochromism · fulgide · fulgimide
Abstract
Four new fulgimides possessing a fluorescent coumarin unit were synthesized from the corresponding fulgides, and their photochromic as well as fluorescence properties were investigated. The open-ring forms of coumarin fulgimides were found to exhibit fluorescence in the visible region. Upon exposure to UV light, the fulgimides were transformed into the nonfluorescent closed-ring forms, which can be reverted to the initial fluorescent open-ring forms on exposure to visible light. The efficiency of quenching of fluorescence was as high as 95% at the photostationary state of UV irradiation.