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Regensburg 2025 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 62: Focus Session Molecular Nanostructures on Surfaces: On-Surface Synthesis and Single-Molecule Manipulation III

O 62.4: Vortrag

Mittwoch, 19. März 2025, 11:15–11:30, H24

The odd-number cyclo[13]carbon and its dimer, cyclo[26]carbon — •Florian Albrecht1, Igor Rončević2, Yueze Gao2, Fabian Paschke1, Alberto Baiardi3, Ivano Tavernelli3, Shantanu Mishra1, Harry L. Anderson2 und Leo Gross11IBM Research Europe - Zurich — 2Department of Chemistry, Oxford Univeristy — 3IBM Quantum, IBM Research Europe - Zurich

Using CO-functionalized tips, we generate the odd-numbered cyclocarbon molecule cyclo[13]carbon (C13) on an ulatra-thin insulating film by applying voltage pulses to a stable precursor molecule. The geometric and electronic properties of C13 were characterized experimentally as well as theoretically, determining the electronic ground state to be an open-shell triplet. In addition to the C13 monomer, we also generated its dimer, cyclo[26]carbon, from two precursor molecules [1].

[1] Albrecht et al., Science 384, 677 (2024)

Keywords: Tip-induced chemistry; Cycocarbon molecules; Ultrathin insulating films; Functionalized tips

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