This research uncovers a dimer that enhances solubility and enables rapid negative photochromism, indicating its potential in light-induced applications.
We report a binaphthyl-bridged imidazole dimer bearing alkylpyridinium groups that exhibit fast and visible-light-induced negative photochromism even in aqueous media. The introduction of ionic groups not only enhances water solubility but also induces charge-transfer absorption, enabling efficient blue-light activation.
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MITSUHASHI et al. (2025) studied this question.
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