Berlin 2018 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 87: Focus Session: Molecular Nanostructures on surfaces - New Concepts towards Complex Architectures V
O 87.2: Vortrag
Donnerstag, 15. März 2018, 11:00–11:15, MA 004
On-surface molecular synthesis of thermally unaccessible molecules by reactive landing electrospray ion beam deposition. — •Lukas Krumbein1, Sabine Abb1, Suman Sen1, Klaus Kern1,2, and Stephan Rauschenbach1,3 — 1Max-Planck-Institute for Solid State Research, 70569 Stuttgart, Germany — 2Institut de Physique, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland — 3University of Oxford, Department of Chemistry, OX1 3TA Oxford, UK
On-surface molecular reactions have been in the focus of research due to their potential impact in molecular devices and for robust surface functionalization. Generally those reactions require thermal activation.
Alternatively electrospray ion beam deposition (ES-IBD) provides charged molecular beams for deposition at collision energies freely tunable in the range of 2eV-200eV. A surface collision at this energy is sufficient to drive on-surface reactions at room temperature.
Using the Reichardt's Dye molecule as a model systems we demonstrate equivalent on-surface reactions upon thermal annealing as well as hyperthermal surface collision. In particular we observe the formation of covalently linked dimers and (cyclo-) dehydrogenation including transition states not accessible by thermal annealing.