Adsorption and switching properties of a N-benzylideneaniline based molecular 
switch on a Au(111) surface

Óvári, László; Luo, Ying; Leyssner, Felix; Haag, Rainer; Wolf, Martin; Tegeder, Petra

doi:10.1063/1.3460647

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Adsorption and switching properties of a N-benzylideneaniline based molecular switch on a Au(111) surface

MPS-Authors

/persons/resource/persons22250

Wolf, Martin
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Óvári, L., Luo, Y., Leyssner, F., Haag, R., Wolf, M., & Tegeder, P. (2010). Adsorption and switching properties of a N-benzylideneaniline based molecular switch on a Au(111) surface. Journal of Chemical Physics, 133(4), 044707–1-044707–8. doi:10.1063/1.3460647.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-F534-A

Abstract

High resolution electron energy loss spectroscopy is employed to analyze the adsorption geometry and the photoisomerization ability of the molecular switch carboxy-benzylideneaniline (CBA) adsorbed on Au(111). CBA adopts on the Au(111) surface a planar (trans) configuration in the first monolayer (ML) as well as for higher coverages (up to 6 ML), contrary to the geometry in solution, which is strongly non-planar. Illumination with UV light of CBA in direct contact with the Au(111) surface (≤ 1 ML) caused no changes in the vibrational structure, whereas at higher coverages ( > 1 ML) pronounced modifications of vibrational features are observed, which we assign to a trans → cis isomerization. Thermal activation induced the back reaction to trans-CBA. We propose that the photoisomerization is driven by a direct (intramolecular) electronic excitation of the adsorbed CBA molecules in the second ML (and above) analogous to CBA in the liquid phase.