Charge‐Segregated Stacking Structure with Anisotropic Electric Conductivity in NIR‐Absorbing and Emitting Positively Charged π‐Electronic Systems
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- Kazuhisa Yamasumi
- Department of Applied Chemistry College of Life Sciences Ritsumeikan University Kusatsu 525-8577 Japan
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- Kentaro Ueda
- Department of Applied Chemistry College of Life Sciences Ritsumeikan University Kusatsu 525-8577 Japan
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- Yohei Haketa
- Department of Applied Chemistry College of Life Sciences Ritsumeikan University Kusatsu 525-8577 Japan
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- Yusuke Hattori
- Department of Molecular Engineering Graduate School of Engineering Kyoto University Kyoto 615-8510 Japan
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- Masayuki Suda
- Department of Molecular Engineering Graduate School of Engineering Kyoto University Kyoto 615-8510 Japan
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- Shu Seki
- Department of Molecular Engineering Graduate School of Engineering Kyoto University Kyoto 615-8510 Japan
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- Hayato Sakai
- Department of Chemistry Faculty of Science and Technology Keio University Yokohama 223-8522 Japan
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- Taku Hasobe
- Department of Chemistry Faculty of Science and Technology Keio University Yokohama 223-8522 Japan
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- Ryoya Ikemura
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University Higashi Osaka 577-8502 Japan
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- Yoshitane Imai
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University Higashi Osaka 577-8502 Japan
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- Yukihide Ishibashi
- Department of Materials Science and Biotechnology Graduate School of Science and Engineering Ehime University Matsuyama 790-8577 Japan
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- Tsuyoshi Asahi
- Department of Materials Science and Biotechnology Graduate School of Science and Engineering Ehime University Matsuyama 790-8577 Japan
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- Kazuto Nakamura
- Yokkaichi Research Center JSR Corporation Yokkaichi 510-8552 Japan
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- Hiromitsu Maeda
- Department of Applied Chemistry College of Life Sciences Ritsumeikan University Kusatsu 525-8577 Japan
書誌事項
- 公開日
- 2023-01-17
- 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/ange.202216013
- 10.1002/anie.202216013
- 公開者
- Wiley
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説明
<jats:title>Abstract</jats:title><jats:p>Squarylium‐based π‐electronic cation with an augmented dipole was synthesized by methylation of zwitterionic squarylium. The cation formed various ion pairs in combination with anions, and the ion pairs exhibited distinct photophysical properties in the dispersed state, ascribed to the formation of J‐ and H‐aggregates. The ion pairs provided solid‐state assemblies based on cation stacking. It is noteworthy that complete segregation of cations and anions was observed in a pseudo‐polymorph of the ion pair with pentacyanocyclopentadienide as a π‐electronic anion. In the crystalline state, the ion pairs exhibited photophysical properties and electric conductivity derived from cation stacking. In particular, the charge‐segregated ion‐pairing assembly induces an electric conductive pathway along the stacking axis. The charge‐segregated mode and fascinating properties were derived from the reduced electrostatic repulsion between adjacent π‐electronic cations via dipole–dipole interactions.</jats:p>
収録刊行物
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- Angewandte Chemie
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Angewandte Chemie 135 (8), e202216013-, 2023-01-17
Wiley