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Published on: October 5, 2019
An ionic binaphthyl-bridged imidazole dimer for fast visible-light-driven negative photochromism in aqueous media
Kaede Mitsuhashi1, Takumi Aizawa1, Jiro Abe1
1Department of Chemistry and Biological Science, College of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan. jiro_abe@chem.aoyama.ac.jp.
Abstract:
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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