2020年11月23日
Double-Helix Supramolecular Nanofibers Assembled from Negatively Curved Nanographenes
Journal of the American Chemical Society
- 巻
- 143
- 号
- 14
- 開始ページ
- 5465
- 終了ページ
- 5469
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.26434/chemrxiv.13270607.v1
- 出版者・発行元
- American Chemical Society (ACS)
The layered structures of graphite and related nanographene molecules play key roles in their physical and electronic functions. However, the stacking modes of negatively curved nanographenes remains unclear, owing to the lack of suitable nanographene molecules. Herein we report the synthesis and one-dimensional supramolecular self-assembly of negatively curved nanographenes without any assembly-assisting substituents. This curved nanographene self-assembles in various organic solvents and acts as an efficient gelator. The formation of nanofibers was confirmed by microscopic measurements, and an unprecedented double-helix assembly by continuous π-π stacking was uncovered by three-dimensional electron crystallography. This work not only reports the discovery of an all-sp<sup>2</sup>-carbon supramolecular π-organogelator with negative curvature, but also demonstrates the power of three-dimensional electron crystallography for the structural determination of submicrometer-sized molecular alignment.
- リンク情報
- ID情報
-
- DOI : 10.26434/chemrxiv.13270607.v1
- ISSN : 0002-7863
- ISSN : 1520-5126
- ORCIDのPut Code : 97907790