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Vibrational fine structure on the core level photoelectron lines of small polyatomic molecules

MPS-Authors
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Neeb,  M.
Fritz Haber Institute, Max Planck Society;
Forschungszentrum Jülich GmbH, Institut für Festkörperforschung, Germany;

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Kempgens,  Brigitte
Fritz Haber Institute, Max Planck Society;

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Kivimäki,  A.
Fritz Haber Institute, Max Planck Society;
Department of Physical Sciences, University of Oulu, Finland;

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Köppe,  H. M.
Fritz Haber Institute, Max Planck Society;

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Maier,  Klaus
Fritz Haber Institute, Max Planck Society;

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Hergenhahn,  Uwe       
Fritz Haber Institute, Max Planck Society;

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Piancastelli,  Maria Novella
Fritz Haber Institute, Max Planck Society;
Department of Chemical Sciences and Technologies, University “Tor Vergata”, Italy;

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Rüdel,  Andy
Fritz Haber Institute, Max Planck Society;

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

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Citation

Neeb, M., Kempgens, B., Kivimäki, A., Köppe, H. M., Maier, K., Hergenhahn, U., et al. (1998). Vibrational fine structure on the core level photoelectron lines of small polyatomic molecules. Journal of Electron Spectroscopy and Related Phenomena, 88-91, 19-27. doi:10.1016/S0368-2048(97)00262-4.


Cite as: https://hdl.handle.net/21.11116/0000-0008-C8D8-3
Abstract
The C 1s and O 1s photoelectron spectra of CH4, CD4, CF4, C2H6 and CO2 have been measured with high photon energy resolution. Vibrational fine structure on the main line (single hole state) could be resolved for all molecules except CF4. Even in the case of C2H6 where several modes are expected to couple, two prominent progressions are visible. The fine structure on the C 1s line of CO2 results, as expected, from the totally symmetric stretching mode, whereas the O 1s main line is dominated by the antisymmetric stretching mode ofσu symmetry due to vibronic coupling.