On-Surface Synthesis of a π-Extended Diaza[8]circulene

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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2020-05-15

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en

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Journal of the American Chemical Society

Abstract

Heterocyclic [8]circulenes are an important class of polycyclic aromatic hydrocarbon molecules because of their unique structural properties and promising applications. However, the synthesis of heterocyclic [8]circulenes is still limited and thus is an important synthetic challenge. Here we describe the first example of a π-extended diaza[8]circulene surrounded by and fused with six hexagons and two pentagons, which was successfully synthesized only by a combined in-solution and on-surface synthetic strategy. State-of-the-art scanning tunneling microscopy with a CO-functionalized tip and density functional theory calculations revealed its planar conformation and unique electronic structure.

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| openaire: EC/H2020/845060/EU//QMKPFM

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Nakamura, K, Li, Q Q, Krejčí, O, Foster, A S, Sun, K, Kawai, S & Ito, S 2020, ' On-Surface Synthesis of a π-Extended Diaza[8]circulene ', Journal of the American Chemical Society, vol. 142, no. 26, pp. 11363–11369 . https://doi.org/10.1021/jacs.0c02534