A Highly Emissive Diarylethene Photoswitch with Efficient Reversible Switching in Solution and the Solid State

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ID: 337899
2026
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Abstract
Abstract A highly emissive diarylethene photoswitch was developed by introducing a phenyl substituent into a benzophosphole-containing framework. The closed-ring isomer exhibited high fluorescence quantum yields in cyclohexane (Φf = 0.72) and powder (Φf = 0.96), while retaining sufficient cycloreversion reactivity (ΦCO = 3.7 × 10−2) and reversible photoswitching. Analysis of the excited-state decay processes revealed that the enhanced fluorescence primarily originates from suppressed non-radiative deactivation, demonstrating efficient emission in both solution and the solid state with reversible photoswitching.
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Authors Arisa Hamada, Kotomi Takahashi, Yoshiyuki Watanabe, Sota Takahashi, Daisuke Kosumi, Masakazu Morimoto, Tsuyoshi Fukaminato
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Journal phytochemistry letters
Year 2026
DOI
10.1093/chemle/upag207
URL
https://doi.org/10.1093/chemle/upag207
Keywords Keywords not found

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