Design and Characterization of an Electrically Powered Single Molecule on Gold

Pawlak, Rémy and Meier, Tobias and Renaud, Nicolas and Kisiel, Marcin and Hinaut, Antoine and Glatzel, Thilo and Sordes, Delphine and Durand, Corentin and Soe, We-Hyo and Housecroft, Catherine E. and Joachim, Christian and Constable, Edwin C. and Meyer, Ernst and Baratoff, Alexis. (2017) Design and Characterization of an Electrically Powered Single Molecule on Gold. ACS Nano, 11. pp. 9930-9940.

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Official URL: http://edoc.unibas.ch/57926/

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The surface diffusion of individual molecules is of paramount importance in self-assembly processes and catalytic processes. However, the fundamental understanding of molecule diffusion peculiarities considering conformations and adsorption sites remain poorly known at the atomic scale. Here, we probe the 4′-(4-tolyl)-2,2′:6′,2″-terpyridine adsorbed on the Au(111) herringbone structure combining scanning tunneling microscopy and atomic force microscopy. Molecules are controllably translated by electrons excitations over the reconstruction, except at elbows acting as pinning centers. Experimental data supported by theoretical calculations show the formation of coordination bonds between the molecule and Au atoms of the surface. Using force spectroscopy, we quantify local variation of the surface potential and the lateral force required to move the molecule. We found an elevation of the diffusion barrier at elbows of the reconstruction of ∼100 meV compared to the rest of the surface.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Constable)
05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Housecroft)
UniBasel Contributors:Housecroft, Catherine Elizabeth and Constable, Edwin Charles and Meyer, Ernst and Glatzel, Thilo and Pawlak, Rémy and Hinaut, Antoine
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Chemical Society
Note:Publication type according to Uni Basel Research Database: Journal article -- The final publication is available at American Chemical Society, see DOI link.
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Last Modified:08 Feb 2020 14:46
Deposited On:27 Dec 2017 13:12

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