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タイトル: | Flattened 1D fragments of fullerene C₆₀ that exhibit robustness toward multi-electron reduction |
著者: | Hayakawa, Masahiro https://orcid.org/0000-0002-2405-9897 (unconfirmed) Sunayama, Naoyuki Takagi, Shu I. Matsuo, Yu Tamaki, Asuka Yamaguchi, Shigehiro Seki, Shu https://orcid.org/0000-0001-7851-4405 (unconfirmed) Fukazawa, Aiko https://orcid.org/0000-0002-2903-105X (unconfirmed) |
著者名の別形: | 早川, 雅大 砂山, 尚之 髙木, 周 松尾, 優 田巻, 明日佳 山口, 茂弘 関, 修平 深澤, 愛子 |
キーワード: | Carbon nanotubes and fullerenes Chemical physics Structure elucidation |
発行日: | 15-May-2023 |
出版者: | Springer Nature |
誌名: | Nature Communications |
巻: | 14 |
論文番号: | 2741 |
抄録: | Fullerenes are compelling molecular materials owing to their exceptional robustness toward multi-electron reduction. Although scientists have attempted to address this feature by synthesizing various fragment molecules, the origin of this electron affinity remains unclear. Several structural factors have been suggested, including high symmetry, pyramidalized carbon atoms, and five-membered ring substructures. To elucidate the role of the five-membered ring substructures without the influence of high symmetry and pyramidalized carbon atoms, we herein report the synthesis and electron-accepting properties of oligo(biindenylidene)s, a flattened one-dimensional fragment of fullerene C₆₀. Electrochemical studies corroborated that oligo(biindenylidene)s can accept electrons up to equal to the number of five-membered rings in their main chains. Moreover, ultraviolet/visible/near-infrared absorption spectroscopy revealed that oligo(biindenylidene)s exhibit enhanced absorption covering the entire visible region relative to C₆₀. These results highlight the significance of the pentagonal substructure for attaining stability toward multi-electron reduction and provide a strategy for the molecular design of electron-accepting π-conjugated hydrocarbons even without electron-withdrawing groups. |
記述: | フラーレンに迫る電子受容能をもつ平坦な一次元π共役炭化水素の開発. 京都大学プレスリリース. 2023-05-15. Flat fullerene fragments attractive to electrons. 京都大学プレスリリース. 2023-06-01. |
著作権等: | © The Author(s) 2023 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. |
URI: | http://hdl.handle.net/2433/282134 |
DOI(出版社版): | 10.1038/s41467-023-38300-3 |
PubMed ID: | 37188690 |
関連リンク: | https://www.icems.kyoto-u.ac.jp/news/8110/ https://www.t.kyoto-u.ac.jp/ja/research/topics/20230516 https://www.icems.kyoto-u.ac.jp/en/news/8163/ |
出現コレクション: | 学術雑誌掲載論文等 |
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