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Title: Helical Nanographenes Embedded with Contiguous Azulene Units
Authors: Ogawa, Naoki
Yamaoka, Yousuke
Takikawa, Hiroshi  kyouindb  KAKEN_id  orcid (unconfirmed)
Yamada, Ken-ichi
Takasu, Kiyosei  kyouindb  KAKEN_id  orcid (unconfirmed)
Author's alias: 小川, 直希
山岡, 庸介
瀧川, 紘
山田, 健一
高須, 清誠
Issue Date: 5-Aug-2020
Publisher: American Chemical Society (ACS)
Journal title: Journal of the American Chemical Society
Volume: 142
Issue: 31
Start page: 13322
End page: 13327
Abstract: The azulene moiety, composed of contiguous pentagonal and heptagonal rings, is a structural defect that alters the electronic, magnetic, and structural properties of graphenes and graphene nanoribbons. However, nanographenes embedded with an azulene cluster have not been widely investigated because these compounds are difficult to synthesize in their pure form. Herein, azulene-embedded nanographenes bearing a unique cove-type edge were synthesized by a novel synthetic protocol. Experimental and theoretical investigations revealed that this cove edge imparts stable helical chirality, unlike normal cove edges. The in-solution self-association behavior and the structural, electronic, and electrochemical properties were also described in detail.
Description: うねり構造をもつグラフェンナノリボンの精密合成に成功 --非ベンゼノイド構造の新規構築反応を開発--. 京都大学プレスリリース. 2020-07-20.
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of the American Chemical Society, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
The full-text file will be made open to the public on 17 July 2021 in accordance with publisher's 'Terms and Conditions for Self-Archiving'.
This is not the published version. Please cite only the published version.
DOI(Published Version): 10.1021/jacs.0c06156
PubMed ID: 32677830
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