Three-dimensional graphene nanoribbons as a framework for molecular assembly and local probe chemistry

Shigeki Kawai; Ondřej Krejčí; Tomohiko Nishiuchi; Keisuke Sahara; Takuya Kodama; Rémy Pawlak; Ernst Meyer; Takashi Kubo; Adam S. Foster

doi:10.1126/sciadv.aay8913

ジャーナル論文 Three-dimensional graphene nanoribbons as a framework for molecular assembly and local probe chemistry

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Shigeki Kawai, Ondřej Krejčí, Tomohiko Nishiuchi, Keisuke Sahara, Takuya Kodama, Rémy Pawlak, Ernst Meyer, Takashi Kubo, Adam S. Foster. Three-dimensional graphene nanoribbons as a framework for molecular assembly and local probe chemistry. Science Advances. 2020, 6 (9), eaay8913. https://doi.org/10.1126/sciadv.aay8913

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(abstract)

Recent advances in state-of-the-art probe microscopy allow us to conduct single molecular chemistry via tip-induced reactions and direct imaging of the inner structure of the products. Here, we synthesize three-dimensional graphene nanoribbons by on-surface chemical reaction and take advantage of tip-induced assembly to demonstrate their capability as a playground for local probe chemistry. We show that the radical caused by tip-induced debromination can be reversibly terminated by either a bromine atom or a fullerene molecule. The experimental results combined with theoretical calculations pave the way for sequential reactions, particularly addition reactions, by a local probe at the single-molecule level decoupled from the surface.

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