Phosphonic Acids on an Atomically Defined Oxide Surface: The Binding Motif Changes with Surface Coverage

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Schuschke C, Schwarz M, Hohner C, Silva TN, Fromm L, Döpper T, Görling A, Libuda J
Zeitschrift: Journal of Physical Chemistry Letters
Verlag: AMER CHEMICAL SOC
Jahr der Veröffentlichung: 2018
Band: 9
Heftnummer: 8
Seitenbereich: 1937-1943
ISSN: 1948-7185


Abstract

We have studied the anchoring mechanism of a phosphonic acid on an atomically defined oxide surface. Using time-resolved infrared reflection absorption spectroscopy, we investigated the reaction of deuterated phenylphosphonic acid (DPPA, C6HsPO3D2) with an atomically defined Co3O4(111) surface in situ during film growth by physical vapor deposition. We show that the binding motif of the phosphonate anchor group changes as a function of coverage. At low coverage, DPPA binds in the form of a chelating tridentate phosphonate, while a transition to a chelating bidentate occurs close to monolayer saturation coverage. However, the coverage-dependent change in the binding motif is not associated with a major change of the molecular orientation, suggesting that the rigid phosphonate linker always maintains the DPPA in a strongly tilted orientation irrespective of the surface coverage.


FAU-Autoren / FAU-Herausgeber

Döpper, Tibor
Lehrstuhl für Theoretische Chemie
Fromm, Lukas
Lehrstuhl für Theoretische Chemie
Görling, Andreas Prof. Dr.
Lehrstuhl für Theoretische Chemie
Hohner, Chantal
Lehrstuhl für Physikalische Chemie II
Libuda, Jörg Prof. Dr.
Professur für Physikalische Chemie
Schuschke, Christian
Lehrstuhl für Physikalische Chemie II
Schwarz, Matthias
Lehrstuhl für Physikalische Chemie II


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials


Zitierweisen

APA:
Schuschke, C., Schwarz, M., Hohner, C., Silva, T.N., Fromm, L., Döpper, T.,... Libuda, J. (2018). Phosphonic Acids on an Atomically Defined Oxide Surface: The Binding Motif Changes with Surface Coverage. Journal of Physical Chemistry Letters, 9(8), 1937-1943. https://dx.doi.org/10.1021/acs.jpclett.8b00668

MLA:
Schuschke, Christian, et al. "Phosphonic Acids on an Atomically Defined Oxide Surface: The Binding Motif Changes with Surface Coverage." Journal of Physical Chemistry Letters 9.8 (2018): 1937-1943.

BibTeX: 

Zuletzt aktualisiert 2019-19-02 um 16:23