Single-Molecule Junctions Based on Nitrile-Terminated Biphenyls : a Promising New Anchoring Group

Mishchenko, Artem and Zotti, Linda A. and Vonlanthen, David and Bürkle, Marius and Pauly, Fabian and Cuevas, Juan Carlos and Mayor, Marcel and Wandlowski, Thomas. (2011) Single-Molecule Junctions Based on Nitrile-Terminated Biphenyls : a Promising New Anchoring Group. Journal of the American Chemical Society, 133 (2). pp. 184-187.

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Official URL: http://edoc.unibas.ch/dok/A5843750

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We present a combined experimental and theoretical study of the electronic transport through single-molecule junctions based on nitrile-terminated biphenyl derivatives. Using a scanning tunneling microscope-based break-junction technique, we show that the nitrile-terminated compounds give rise to well-defined peaks in the conductance histograms resulting from the high selectivity of the N−Au binding. Ab initio calculations have revealed that the transport takes place through the tail of the LUMO. Furthermore, we have found both theoretically and experimentally that the conductance of the molecular junctions is roughly proportional to the square of the cosine of the torsion angle between the two benzene rings of the biphenyl core, which demonstrates the robustness of this structure−conductance relationship.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Molecular Devices and Materials (Mayor)
UniBasel Contributors:Mayor, Marcel and Vonlanthen, David
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Chemical Society
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:05 Apr 2017 12:58
Deposited On:14 Sep 2012 07:02

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