Local adsorption geometry of 2-methyl-pyridine on Cu(110) determined by photoelectron diffraction

Citation
R. Terborg et al., Local adsorption geometry of 2-methyl-pyridine on Cu(110) determined by photoelectron diffraction, SURF SCI, 457(1-2), 2000, pp. 1-10
Citations number
34
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
SURFACE SCIENCE
ISSN journal
0039-6028 → ACNP
Volume
457
Issue
1-2
Year of publication
2000
Pages
1 - 10
Database
ISI
SICI code
0039-6028(20000601)457:1-2<1:LAGO2O>2.0.ZU;2-N
Abstract
Using N 1s scanned-energy mode photoelectron diffraction, together with N K -edge near-edge absorption fine structure, the local adsorption site and mo lecular orientation of 2-methyl-pyridine adsorbed on Cu(110) has been deter mined and the results are compared with a similar study of pyridine adsorpt ion on the same surface. The molecule is found to bond to the surface throu gh the N atom that occupies a near-atop site. The molecular plane is almost perpendicular to the surface but twisted into an azimuth away from the two principal high-symmetry directions of the surface. The aromatic ring is al so tilted within the molecular plane such as to increase the separation of the methyl group away from the surface. (C) 2000 Elsevier Science B.V. All rights reserved.