Structural study of adsorption of isonicotinic acid and related molecules on rutile TiO2(110) II: XPS
(2003) In Surface Science 544(1). p.74-86- Abstract
- The adsorption of monolayers of the pyridine-carboxylic acid monomers (isonicotinic acid, nicotinic acid, and picolinic acid) on rutile TiO2(1 1 0) has been studied by means of X-ray photoemission spectroscopy. An investigation of the O 1s spectra shows that the molecular carboxylic groups are deprotonated and, hence, that the molecules bind to the surface in a bidentate mode. Moreover, the binding energy of those core levels that are related to the pyridine ring atoms shift as a function of molecule relative to the substrate O 1s and Ti 3p levels, while the position of the core levels related to emission from the carboxylic group are constant relative to the substrate levels. The molecule-dependent shifts are attributed to local... (More)
- The adsorption of monolayers of the pyridine-carboxylic acid monomers (isonicotinic acid, nicotinic acid, and picolinic acid) on rutile TiO2(1 1 0) has been studied by means of X-ray photoemission spectroscopy. An investigation of the O 1s spectra shows that the molecular carboxylic groups are deprotonated and, hence, that the molecules bind to the surface in a bidentate mode. Moreover, the binding energy of those core levels that are related to the pyridine ring atoms shift as a function of molecule relative to the substrate O 1s and Ti 3p levels, while the position of the core levels related to emission from the carboxylic group are constant relative to the substrate levels. The molecule-dependent shifts are attributed to local intermolecular interactions that determine the proximity of adjacent molecular rings and thus the core-hole screening response of the neighbouring molecules. We propose a simple molecular arrangement for each case which satisfies the known constraints. (C) 2003 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/298561
- author
- Schnadt, J LU ; O'Shea, JN ; Patthey, L ; Schiessling, J ; Krempasky, J ; Shi, M ; Mårtensson, Nils LU and Bruhwiler, PA
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- evaporation and sublimation, synchrotron radiation photoelectron spectroscopy, chemisorption, aromatics, titanium oxide, single crystal, surfaces
- in
- Surface Science
- volume
- 544
- issue
- 1
- pages
- 74 - 86
- publisher
- Elsevier
- external identifiers
-
- wos:000185804200010
- scopus:0141865567
- ISSN
- 0039-6028
- DOI
- 10.1016/j.susc.2003.08.013
- language
- English
- LU publication?
- yes
- id
- 94a15946-62cd-4b7b-a909-bfcad40421de (old id 298561)
- date added to LUP
- 2016-04-01 16:13:44
- date last changed
- 2022-03-22 17:16:50
@article{94a15946-62cd-4b7b-a909-bfcad40421de, abstract = {{The adsorption of monolayers of the pyridine-carboxylic acid monomers (isonicotinic acid, nicotinic acid, and picolinic acid) on rutile TiO2(1 1 0) has been studied by means of X-ray photoemission spectroscopy. An investigation of the O 1s spectra shows that the molecular carboxylic groups are deprotonated and, hence, that the molecules bind to the surface in a bidentate mode. Moreover, the binding energy of those core levels that are related to the pyridine ring atoms shift as a function of molecule relative to the substrate O 1s and Ti 3p levels, while the position of the core levels related to emission from the carboxylic group are constant relative to the substrate levels. The molecule-dependent shifts are attributed to local intermolecular interactions that determine the proximity of adjacent molecular rings and thus the core-hole screening response of the neighbouring molecules. We propose a simple molecular arrangement for each case which satisfies the known constraints. (C) 2003 Elsevier B.V. All rights reserved.}}, author = {{Schnadt, J and O'Shea, JN and Patthey, L and Schiessling, J and Krempasky, J and Shi, M and Mårtensson, Nils and Bruhwiler, PA}}, issn = {{0039-6028}}, keywords = {{evaporation and sublimation; synchrotron radiation photoelectron spectroscopy; chemisorption; aromatics; titanium oxide; single crystal; surfaces}}, language = {{eng}}, number = {{1}}, pages = {{74--86}}, publisher = {{Elsevier}}, series = {{Surface Science}}, title = {{Structural study of adsorption of isonicotinic acid and related molecules on rutile TiO2(110) II: XPS}}, url = {{http://dx.doi.org/10.1016/j.susc.2003.08.013}}, doi = {{10.1016/j.susc.2003.08.013}}, volume = {{544}}, year = {{2003}}, }