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

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Terborg,  Ralf
Fritz Haber Institute, Max Planck Society;

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Polcik,  Martin
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Hoeft,  Jon Tobias
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Kittel,  Martin
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Bradshaw,  Alexander M.
Fritz Haber Institute, Max Planck Society;

Woodruff,  D. P.
Fritz Haber Institute, Max Planck Society;
Physics Department, University of Warwick;

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Citation

Terborg, R., Polcik, M., Hoeft, J. T., Kittel, M., Pascal, M., Kang, J. H., et al. (2000). Local adsorption geometry of 2-methyl-pyridine on Cu(110) determined by photoelectron diffraction. Surface Science, 457(1-2), 1-10. doi:10.1016/S0039-6028(00)00372-1.


Cite as: http://hdl.handle.net/21.11116/0000-0009-2EFB-A
Abstract
Using N 1s scanned-energy mode photoelectron diffraction, together with N K-edge near-edge absorption fine structure, the local adsorption site and molecular orientation of 2-methyl-pyridine adsorbed on Cu(110) has been determined and the results are compared with a similar study of pyridine adsorption on the same surface. The molecule is found to bond to the surface through 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 also tilted within the molecular plane such as to increase the separation of the methyl group away from the surface.