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O: Fachverband Oberflächenphysik

O 68: Focus Session Molecular Nanostructures on Surfaces: On-Surface Synthesis and Single-Molecule Manipulation IV

Mittwoch, 19. März 2025, 15:00–17:45, H24

This focus session aims to discuss recent advances in the on-surface synthesis, manipulation, characterization, and understanding of complex molecular architectures on surfaces. The interest in surface-confined molecular nanostructures emerges from their prospective applications in nanoscale (opto-) electronics, spintronics, solar cells, energy storage devices, and other fields. The bottom-up fabrication of surface-supported nanostructures can be based on molecular self-assembly utilizing non-covalent intermolecular interactions, covalent on-surface synthesis, or the direct manipulation of molecules. Molecular self-assembly usually leads to highly ordered nanostructures, controlled by non-covalent interactions, adsorbate-substrate interactions, as well as thermodynamic and kinetic factors. On-surface synthesis by covalent coupling of reactive precursors adsorbed on metallic, semiconducting, or even insulating surfaces has emerged as a powerful method that has opened new possibilities in exploring new routes towards the synthesis of complex low-dimensional nanostructures with unprecedented material properties, often via novel chemical reactions not available in conventional organic chemistry. Finally, the direct manipulation of molecules with the tip of a scanning probe microscope allows for unprecedented chemical transformations or structural modifications, as envisioned by the pioneers of nanotechnology. This focus session is intended to provide a platform for addressing current trends in these closely linked fields from various perspectives in experiment and theory.

Organized by
Sabine Wenzel (University of Marburg) and Christian Wagner (Forschungszentrum Jülich)

	15:00	O 68.1	On-surface Synthesis of Aza-Coronoids — •Tim Naumann, Zilin Ruan, Olaf Kleykamp, Alix Kaczmarek, Linus Pohl, Andreas Achazi, Eugen Sharikow, Doreen Mollenhauer, Jörg Sundermeyer, and J. Michael Gottfried
	15:15	O 68.2	Sequential on-surface synthesis of planar and curved fused anthracenyl-porphyrins — •Miloš Baljozović, Joffrey Pijeat, Stéphane Campidelli, and Karl-Heinz Ernst
	15:30	O 68.3	On-surface synthesis of porphyrin-capped carbon nanocones — Nemanja Kocic, Andreas Dörr, Moritz Villmow, Kevin Dhamo, Michael Ruppel, Norbert Jux, Bernd Meyer, and •Sabine Maier
	15:45	O 68.4	Relating Radical Delocalization, Charge Transfer and Magnetic Ground State in Open-Shell Molecules — Tao Wang, Sergio Salaverria, Fernando Aguilar-Galindo, Javier Besteiro-Saez, Luis M. Mateo, Paula Angulo-Portugal, Jonathan Rodriguez-Fernandez, Dolores Perez, Martina Corso, Diego Peña, and •Dimas G. de Oteyza
	16:00	O 68.5	A route toward the on-surface synthesis of organic ferromagnetic quantum spin chains — •Fabian Paschke, Ricardo Ortiz, Shantanu Mishra, Manuel Vilas-Varela, Florian Albrecht, Diego Peña, Manuel Melle-Franco, and Leo Gross
	16:15	O 68.6	Atomically Precise Control of Topological State Hybridization in Conjugated Polymers — Alejandro Jiménez-Martín, Zdenka Sosnová, Diego Soler, Benjamin Mallada, Héctor González-Herrero, Shayan Edalatmanesh, Pavel Jelínek, and •Bruno de la Torre
	16:30	O 68.7	On-surface encapsulation of azafullerene radicals: towards 2D spin networks — •Marion A. van Midden Mavrič, Bastien Anézo, Gregor Kladnik, Luca Schio, Gregor Bavdek, Yuri Tanuma, Ruben Canton-Vitoria, Ioanna K. Sideri, Nikos Tagmatarchis, Jannis Volkmann, Herman A. Wegner, Andrea Goldoni, Chris Ewels, Alberto Morgante, Luca Floreano, Erik Zupanič, Dean Cvetko, and Denis Arčon
	16:45	O 68.8	Remote debromination on ultrathin insulating film — •Tzu-Chao Hung, Lucía Gómez-Rodrigo, Lennart Moritz, Manuel Vilas-Varela, Leo Gross, Diego Peña, and Jascha Repp
	17:00	O 68.9	Hauptvortrag: On-Surface Synthesis of Porphyrins and BN-Substituted Carbon Scaffolds — •Willi Auwärter
	17:30	O 68.10	An electrically controlled molecular spin switch — •Kwan Ho Au-Yeung, Wantong Huang, Paul Greule, Máté Stark, Christoph Sürgers, Wolfgang Wernsdorfer, Roberto Robles, Nicolas Lorente, and Philip Willke