Adsorption and reversible conformational change of a thiophene based molecule on Au(111).
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
30 Jun 2023
30 Jun 2023
Historique:
received:
03
05
2023
accepted:
25
06
2023
medline:
3
7
2023
pubmed:
1
7
2023
entrez:
30
6
2023
Statut:
epublish
Résumé
We present a low temperature scanning tunneling microscope investigation of a prochiral thiophene-based molecule that self-assembles forming islands with different domains on the Au(111) surface. In the domains, two different conformations of the single molecule are observed, depending on a slight rotation of two adjacent bromothiophene groups. Using voltage pulses from the tip, single molecules can be switched between the two conformations. The electronic states have been measured with scanning tunneling spectroscopy, showing that the electronic resonances are mainly localized at the same positions in both conformations. Density-functional theory calculations support the experimental results. Furthermore, we observe that on Ag(111), only one configuration is present and therefore the switching effect is suppressed.
Identifiants
pubmed: 37391525
doi: 10.1038/s41598-023-37661-5
pii: 10.1038/s41598-023-37661-5
pmc: PMC10313653
doi:
Substances chimiques
Thiophenes
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
10627Subventions
Organisme : Deutsche Forschungsgemeinschaft
ID : CRC1415
Organisme : European Innovation Council
ID : 101046364
Informations de copyright
© 2023. The Author(s).
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