Dresden 2026 – scientific programme
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O: Fachverband Oberflächenphysik
O 69: Nanostructures at surfaces:1D, 2D, networks – Poster
O 69.11: Poster
Wednesday, March 11, 2026, 18:00–20:00, P2
Orthogonally oriented molecular motors assembled on the surface: from liquid-solid to ultrahigh vacuum — •Robby Reynaerts1, Cosima Stähler2, Steven De Feyter3, Ben L. Feringa2, and Leonhard Grill1 — 1Department of Chemistry, Division of Physical and Theoretical Chemistry, University of Graz, Heinrichstraße 28, 8010 Graz, Austria — 2Stratingh Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands — 3Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
Molecular motors continue to attract wide interest, due to their capability to convert energy into uni-directional rotary motion at the nanoscale. Immobilization of molecular motors on a solid surface through molecular self-assembly could amplify their nanoscale motion. Applying specific molecular design such controlled assembly of molecular motors was achieved at the liquid-solid (LS) interface under ambient conditions and studied using scanning tunnelling microscopy (STM). However, the dynamics inherent to ambient conditions were inseparable from the response of the molecular motors to external stimuli. Bringing the system over to low temperature and ultra-high vacuum (LT-UHV) conditions would rid any inherent dynamics from those ambient conditions. In this contribution I will discuss the controlled self-assembly of molecular motors on a solid surface achieved through molecular design under ambient and LT-UHV conditions and the experimental transition between these conditions. References: Chem. Rev. 2005, 105, 1281; Chem. Eur. J. 2024, e202303994.
Keywords: 2D; Self-Assembly; STM; UHV; Liquid-Solid interface