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O: Fachverband Oberflächenphysik

O 31: Focus Session Molecular Nanostructures on Surfaces: On-Surface Synthesis and Single-Molecule Manipulation II

O 31.8: Vortrag

Dienstag, 18. März 2025, 12:30–12:45, H24

Intermediates, reactions and products of cyclocarbons — •Leo Gross¹, Fabian Paschke¹, Florian Albrecht¹, Yueze Gao², Igor Roncevic³, and Harry L. Anderson² — ¹IBM Research Europe - Zurich, Rüschlikon, Switzerland — ²Oxford University, Chemistry Research Laboratory, Oxford, UK — ³University of Manchester, Department of Chemistry, Manchester, UK

Cyclocarbons, molecular allotropes of carbon in which all carbon atoms are two-fold coordinated, have been synthesized on surface using tip-induced chemistry [1-4], and the formation of larger cyclocarbons by dimerization of precursors was shown [4]. This presentation will focus on products, reactions and intermediates of cyclocarbons, generated by tip-induced chemistry on ultrathin NaCl layers and characterized by STM and AFM with CO-functionalized tips.

[1] K. Kaiser et al., Science, 365, 1299-1301 (2019)

[2] L. Sun et al., Nature, 623, 972-976 (2023)

[3] Y. Gao et al. Nature, 623, 977-981 (2023)

[4] F. Albrecht et al. Science, 384, 677-682 (2024)

Keywords: tip-induced chemistry; on-surface chemistry; atom manipulation; AFM; STM