Bias-induced conformational switching of supramolecular networks of trimesic acid at the solid-liquid interface

Jeroen Ubink, Mihaela Enache, Meike Stöhr*

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

16 Citaten (Scopus)
448 Downloads (Pure)

Samenvatting

Using the tip of a scanning tunneling microscope, an electric field-induced reversible phase transition between two planar porous structures ("chickenwire" and "flower") of trimesic acid was accomplished at the nonanoic acid/highly oriented pyrolytic graphite interface. The chicken wire structure was exclusively observed for negative sample bias, while for positive sample bias only the more densely packed flower structure was found. We suggest that the slightly negatively charged carboxyl groups of the trimesic acid molecule are the determining factor for this observation: their adsorption behavior varies with the sample bias and is thus responsible for the switching behavior. Published by AIP Publishing.

Originele taal-2English
Artikelnummer174703
Aantal pagina's5
TijdschriftThe Journal of Chemical Physics
Volume148
Nummer van het tijdschrift17
DOI's
StatusPublished - 7-mei-2018

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