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  Mechanically induced single-molecule helicity switching of graphene-nanoribbon-fused helicene on Au(111)

Ishii, A., Shiotari, A., & Sugimoto, Y. (2021). Mechanically induced single-molecule helicity switching of graphene-nanoribbon-fused helicene on Au(111). Chemical Science, 12(40), 13301-13306. doi:10.1039/d1sc03976h.

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 Creators:
Ishii, Ayumu1, Author
Shiotari, Akitoshi1, 2, Author           
Sugimoto, Yoshiaki1, Author
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1Department of Advanced Materials Science, The University of Tokyo, 5-1-5 Kashiwanoha, 277-8561 Kashiwa, Japan , ou_persistent22              
2Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              

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 Abstract: Helicene is a functional material with chirality caused by its characteristic helical geometry. The inversion of its helicity by external stimuli is a challenging task in the advanced control of the molecular chirality. This study fabricated a novel helical molecule, specifically a pentahelicene-analogue twisted aromatic hydrocarbon fused with a graphene nanoribbon, via on-surface synthesis using multiple precursors. Noncontact atomic force microscopy imaging with high spatial resolution confirmed the helicity of the reaction products. The helicity was geometrically converted by pushing a CO-terminated tip into the twisted framework, which is the first demonstration of helicity switching at the single-molecule scale.

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Language(s): eng - English
 Dates: 2021-07-202021-09-132021-10-28
 Publication Status: Published online
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1039/d1sc03976h
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Title: Chemical Science
  Other : Chem. Sci.
Source Genre: Journal
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Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: 6 Volume / Issue: 12 (40) Sequence Number: - Start / End Page: 13301 - 13306 Identifier: ISSN: 2041-6520
CoNE: https://pure.mpg.de/cone/journals/resource/2041-6520