Addressing a lattice of rotatable molecular dipoles with the electric field of an STM tip

Frauhammer, Timo and Gerhard, Lukas and Edelmann, Kevin and Lindner, Marcin and Valasek, Michal and Mayor, Marcel and Wulfhekel, Wulf. (2021) Addressing a lattice of rotatable molecular dipoles with the electric field of an STM tip. Physical Chemistry Chemical Physics, 23 (8). pp. 4874-4881.

PDF - Published Version
Available under License CC BY (Attribution).


Official URL: https://edoc.unibas.ch/85429/

Downloads: Statistics Overview


Functional molecular groups mounted on specific foot structures are ideal model systems to study intermolecular interactions, due to the possibility to separate the functionality and the adsorption mechanism. Here, we report on the rotational switching of a thioacetate group mounted on a tripodal tetraphenylmethane (TPM) derivative adsorbed in ordered islands on a Au(111) surface. Using low temperature scanning tunnelling microscopy, individual freestanding molecular groups of the lattice can be switched between two bistable orientations. The functional dependence of this rotational switching on the sample bias and tip-sample distance allows us to model the energy landscape of this molecular group as an electric dipole in the electric field of the tunnelling junction. As expected for the interaction of two dipoles, we found states of neighbouring molecules to be correlated.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Molecular Devices and Materials (Mayor)
UniBasel Contributors:Mayor, Marcel
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Royal Society of Chemistry
Note:Publication type according to Uni Basel Research Database: Journal article
Related URLs:
Identification Number:
edoc DOI:
Last Modified:19 Jan 2022 09:32
Deposited On:19 Jan 2022 09:32

Repository Staff Only: item control page