Regensburg 2022 – scientific programme
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O: Fachverband Oberflächenphysik
O 79: Surface Reactions and Heterogeneous Catalysis 3
O 79.1: Topical Talk
Friday, September 9, 2022, 10:30–11:00, H4
Exploitation of Heterocycles for N-doped Graphene Nanomaterials — Rémy Pawlak1, Ulrich Aschauer2, Silvio Decurtins2, Jascha Repp3, Pavel Jelinek4, Ernst Meyer1, Laerte L. Patera5, and •Shi-Xia Liu2 — 1Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland — 2Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland — 3Institute of Experimental and Applied Physics, University of Regensburg, 93053 Regensburg, Germany — 4Institute of Physics of Czech Academy of Sciences, 16200 Prague, Czech Republic — 5Department of Chemistry and Catalysis Research Center, Technical University of Munich, 85748 Garching, Germany
On-surface chemical reactions have been intensively investigated in order to obtain carbon-based functional nanomaterials which very often cannot be synthesized by wet chemistry. Thus, tailored heterocyclic precursors are becoming increasingly important for the development of highly symmetric 2D-conjugated porous architectures and 1D N-doped graphene nanoribbons (GNRs) with desired functions due to their intrinsic electronic properties. This presentation will focus on our collaborative work on C-C coupling reactions on various surfaces leading to the formation of a range of nanostructures, including molecular wires, fully fused porphyrin-GNR hybrids, as well as 1D- and 2D-conjugated porous networks. All of these atomically precise nanostructures can be directly visualized by STM and AFM. The fine-tuned electronic properties by chemical modification are discussed.