DataVXThe Journal of Physical Chemistry LettersPaper
journal article·2020-02-20Open access

Impact of Electron Solvation on Ice Structures at the Molecular Scale

Cord Bertram, Philipp Auburger, Michel Bockstedte, Julia Stähler, Uwe Bovensiepen, Karina Morgenstern

The Journal of Physical Chemistry Letters· Volume 11· Issue 4
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Source abstract

Abstract

Electron attachment and solvation at ice structures are well-known phenomena. The energy liberated in such events is commonly understood to cause temporary changes at such ice structures, but it may also trigger permanent modifications to a yet unknown extent. We determine the impact of electron solvation on D 2 O structures adsorbed on Cu(111) with low-temperature scanning tunneling microscopy, two-photon photoemission, and ab initio theory. Solvated electrons, generated by ultraviolet photons, lead not only to transient but also to permanent structural changes through the rearrangement of individual molecules. The persistent changes occur near sites with a high density of dangling OD groups that facilitate electron solvation. We conclude that energy dissipation during solvation triggers permanent molecular rearrangement via vibrational excitation.
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Research context

OpenAlex topics: Advanced Chemical Physics Studies · nanoparticles nucleation surface interactions · Spectroscopy and Quantum Chemical Studies

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Affiliations

Physical Chemistry I, Ruhr-Universität Bochum, D-44780 Bochum, Germany

Faculty of Physics, University of Duisburg-Essen, Lotharstr. 1, D-47048 Duisburg, Germany

Solid State Theory, Friedrich-Alexander University Erlangen-Nürnberg, Staudtstr. 7B2, D-91058 Erlangen, Germany

Chemistry and Physics of Materials, University of Salzburg, Jakob-Haringer-Str. 2a, A-5020 Salzburg, Austria

Department of Physical Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, D-14195 Berlin, Germany

Department of Physics, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany

Funding

Deutsche Forschungsgemeinschaft · Cluster of Excellence RESOLV

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