Issue 14, 2008
From the journal:

Physical Chemistry Chemical Physics

Electron-induced isomerisation of dichlorobenzene on Cu(111) and Ag(111)†

Violeta Simic-Milosevic,a   Jörg Meyerb  and  Karina Morgenstern*b  

* Corresponding authors

a Institut für Experimentalphysik, Freie Universität Berlin, Arnimalle 14, Berlin, Germany
E-mail: simic@fhi-berlin.mpg.de
Fax: +49 (0)30 8385 1355
Tel: +49 (0)30 8385 2801

b Institut für Festkörperphysik, Abteilung Oberflächen, Leibniz Universität Hannover, Appelstr. 2, Hannover, Germany
E-mail: morgenstern@fkp.uni-hannove.de
Fax: +49 (0)511 762 4877
Tel: +49 (0)511 762 4821

Abstract

The constitutional isomerisation of single dichlorobenzene molecules adsorbed on the surfaces of Ag(111) and Cu(111) between their meta- and para-isomers is induced and investigated by means of a low temperature scanning tunneling microscope. On both substrates similar isomerisation thresholds are found indicating that the excitation mechanism of this reaction does not depend significantly on the underlying substrate. The isomerisation threshold voltage of (170 ± 7) meV most likely corresponds to excitation of a C–C stretch mode whose gas-phase energies we calculated ab initio to lie at 174 and 172 meV for meta- and para-isomers respectively. Though the reaction is found to be localized on the submolecular scale, it depends heavily on the second substituent both in terms of excitation energy and reaction outcome.

Graphical abstract: Electron-induced isomerisation of dichlorobenzene on Cu(111) and Ag(111)

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Article information

DOI
https://doi.org/10.1039/B718847A
Article type
Paper
Submitted
05 Dec 2007
Accepted
21 Feb 2008
First published
28 Feb 2008

Phys. Chem. Chem. Phys., 2008,10, 1916-1920

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Electron-induced isomerisation of dichlorobenzene on Cu(111) and Ag(111)

V. Simic-Milosevic, J. Meyer and K. Morgenstern, Phys. Chem. Chem. Phys., 2008, 10, 1916 DOI: 10.1039/B718847A

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