On-surface synthesis of nitrogen-doped nanographenes with 5–7 membered rings

Dmitry Skidin; Frank Eisenhut; Marcus Richter; Seddigheh Nikipar; Justus Krüger; Dmitry A. Ryndyk; Reinhard Berger; Gianaurelio Cuniberti; Xinliang Feng; Francesca Moresco

doi:10.1039/C9CC00276F

On-surface synthesis of nitrogen-doped nanographenes with 5–7 membered rings†

Dmitry Skidin,^ab Frank Eisenhut,^ab Marcus Richter,

^bc Seddigheh Nikipar,^a Justus Krüger,^ab Dmitry A. Ryndyk,^d Reinhard Berger,

^bc Gianaurelio Cuniberti,

^abe Xinliang Feng

^bc and Francesca Moresco

*^b

Author affiliations

* Corresponding authors

^a Institute for Materials Science, TU Dresden, 01062 Dresden, Germany

^b Center for Advancing Electronics Dresden, TU Dresden, 01062 Dresden, Germany
E-mail: francesca.moresco@tu-dresden.de

^c Institute of Molecular Functional Materials, Department of Chemistry and Food Chemistry, TU Dresden, 01062 Dresden, Germany

^d Bremen Center for Computational Materials Science, Department of Physics, Universität Bremen, 28359 Bremen, Germany

^e Dresden Center for Computational Materials Science (DCMS), TU Dresden, 01062 Dresden, Germany

Abstract

We report on the formation of nitrogen-doped nanographenes containing five- and seven-membered rings by thermally induced cyclodehydrogenation on the Au(111) surface. Using scanning tunneling microscopy and supported by calculations, we investigated the structure of the precursor and targets, as well as of intermediates. Scanning tunneling spectroscopy shows that the electronic properties of the target nanographenes are strongly influenced by the additional formation of non-hexagonal rings.

Chemical Communications

On-surface synthesis of nitrogen-doped nanographenes with 5–7 membered rings†

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On-surface synthesis of nitrogen-doped nanographenes with 5–7 membered rings

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