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Structural study of adsorption of isonicotinic acid and related molecules on rutile TiO2(110) II: XPS

Schnadt, J LU orcid ; O'Shea, JN ; Patthey, L ; Schiessling, J ; Krempasky, J ; Shi, M ; Mårtensson, Nils LU and Bruhwiler, PA (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)
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author
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organization
publishing date
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}},
}