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タイトル: | Synthesis of inter-[60]fullerene conjugates with inherent chirality |
著者: | Hashikawa, Yoshifumi https://orcid.org/0000-0001-7834-9593 (unconfirmed) Okamoto, Shu Murata, Yasujiro https://orcid.org/0000-0003-0287-0299 (unconfirmed) |
著者名の別形: | 橋川, 祥史 岡本, 脩生 村田, 靖次郎 |
キーワード: | Carbon nanotubes and fullerenes Structure elucidation |
発行日: | 15-Jan-2024 |
出版者: | Springer Nature |
誌名: | Nature Communications |
巻: | 15 |
論文番号: | 514 |
抄録: | Coalescence of [60]fullerenes potentially produces hypothetical nanocarbon assemblies with non-naturally occurring topologies. Since the discovery of [60]fullerene in 1985, coalesced [60]fullerene oligomers have only been observed as transient species by transmission electron microscopy during an oligomerization process under a high electron acceleration voltage. Herein, we showcase the rational synthesis of covalent assemblies consisting of inherently chiral open-[60]fullerenes. The crystallographic analyses unveiled double-caged structures of non-conjugated and conjugated inter-[60]fullerene hybrids, in which the two [60]fullerene cages are bounds to each other through a covalent linkage. The former one further assembles via a heterochiral recognition so that four carbon cages are arranged in a tetrahedral manner both in solution and solid state. Reflecting radially-conjugated double π-surface nature, the inter-[60]fullerene conjugate exhibits strong electronic communication in its reduced states, intense absorption behavior, and chiroptical activity with a dissymmetry factor of 0.21 (at 674 nm) which breaks the record for known chiral organic molecules. |
著作権等: | © The Author(s) 2024 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence 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/2433/286975 |
DOI(出版社版): | 10.1038/s41467-024-44834-x |
PubMed ID: | 38225251 |
出現コレクション: | 学術雑誌掲載論文等 |
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