The effect of halogen substitution in self-assembled monolayers of 
4-mercaptobiphenyls on noble metal substrates

Shaporenko, A.; Heister, K.; Ulman, A.; Grunze, Michael; Zharnikov, M.

doi:10.1021/jp040667y

Datensatz

DATENSATZ AKTIONENEXPORT

Zur Ablage hinzufügen

Lokale TagsFreigabegeschichteDetailsÜbersicht

Freigegeben

Zeitschriftenartikel

The effect of halogen substitution in self-assembled monolayers of 4-mercaptobiphenyls on noble metal substrates

MPG-Autoren

/persons/resource/persons211638

Grunze, Michael
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

Externe Ressourcen

https://pubs.acs.org/doi/pdf/10.1021/jp040667y
(beliebiger Volltext)

https://doi.org/10.1021/jp040667y
(beliebiger Volltext)

Volltexte (beschränkter Zugriff)

Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.

Volltexte (frei zugänglich)

Es sind keine frei zugänglichen Volltexte in PuRe verfügbar

Ergänzendes Material (frei zugänglich)

Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar

Zitation

Shaporenko, A., Heister, K., Ulman, A., Grunze, M., & Zharnikov, M. (2005). The effect of halogen substitution in self-assembled monolayers of 4-mercaptobiphenyls on noble metal substrates. The Journal of Physical Chemistry B, 109(9), 4096-4103. doi:10.1021/jp040667y.

Zitierlink: https://hdl.handle.net/21.11116/0000-0001-ABB6-1

Zusammenfassung

Self-assembled monolayers (SAMs) formed from 4'-substituted 4-mercaptobiphenyls X-(C6H4)2SH (X-BPT, with X = I, Cl, and F) on polycrystalline (111) gold and silver substrates have been characterized by synchrotron-based high-resolution X-ray photoelectron spectroscopy and angle-resolved near-edge X-ray absorption fine structure spectroscopy. The X-BPT molecules were found to form highly oriented and densely packed SAMs on both substrates, with a smaller molecular inclination in the case of Ag. The experimental data show clear evidence for the charge transfer between the 4'-substituent and biphenyl moieties with the direction and extent of the transfer depending on the electronegativity of the halogen substituent. At the same time, no direct evidence of the charge transfer between the 4'-substituent and the thiolate group was observed. However, the substitution of the 4'-hydrogen by a halogen atom seems to affect the detailed packing arrangements of the SAM constituents.