Chiral <i>H</i>‐aggregation‐induced large stokes shift with CPL generation assisted by α‐helical poly(L‐lysine) substructure
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- Kyohei Yoshida
- Department of Applied Chemistry and Biochemistry Kumamoto University Kumamoto Japan
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- Yutaka Kuwahara
- Department of Applied Chemistry and Biochemistry Kumamoto University Kumamoto Japan
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- Nanami Hano
- Department of Applied Chemistry and Biochemistry Kumamoto University Kumamoto Japan
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- Yumi Horie
- Department of Applied Chemistry and Biochemistry Kumamoto University Kumamoto Japan
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- Makoto Takafuji
- Department of Applied Chemistry and Biochemistry Kumamoto University Kumamoto Japan
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- Naoya Ryu
- Kumamoto Industrial Research Institute Kumamoto Japan
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- Shoji Nagaoka
- Department of Applied Chemistry and Biochemistry Kumamoto University Kumamoto Japan
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- Reiko Oda
- University of Bordeaux, CNRS, Bordeaux INP, CBMN Pessac France
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- Hirotaka Ihara
- Department of Applied Chemistry and Biochemistry Kumamoto University Kumamoto Japan
書誌事項
- 公開日
- 2023-03-21
- 資源種別
- journal article
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1002/chir.23553
- 公開者
- Wiley
この論文をさがす
説明
<jats:title>Abstract</jats:title><jats:p>Fluorescent materials with large Stokes shifts have significant potential for use in optical applications. Typically, a synthetic design strategy is utilized for this purpose. In this study, we demonstrated a novel method by binding a chiral template to a nonchiral fluorescent agent without chemical modification. Specifically, α‐helical poly(L‐lysine) was employed as the chiral template, which interacted with a disulfonic fluorescent dye, such as NK2751. The dye caused excimer luminescence by inducing the formation of a chirally <jats:italic>H</jats:italic>‐aggregated dimer only when poly(L‐lysine) was in an α‐helical shape. The result was a Stokes shift of 230 nm. Similar effects were not observed when the chiral template was in a random coil condition and the Stokes shift was less than 40 nm. These findings imply that <jats:italic>H</jats:italic>‐aggregated dimerization, which often results in quenching, permits the electronic transitions necessary for fluorescence events by the formation of the chirally twisted state. In addition, we introduce for the first time the generation of circularly polarized luminescence using the chirality induction phenomena in a dye supported by poly(L‐lysine).</jats:p>
収録刊行物
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- Chirality
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Chirality 35 (7), 411-417, 2023-03-21
Wiley
