Non-Franck-Condon behavior in the C 1s photoelectron spectrum of the methane molecule

K. Ueda, A. Pavlychev, E. Kukk, U. Hergenhahn, H. Yoshida, T. Sunami, F. Tahara, T. Tanaka, M. Kitajima, H. Tanaka, A. De Fanis, Y. Tamenori

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Abstract

Vibrationally resolved carbon 1s photoelectron spectra of methane are measured over a photon energy range between 300 and 480 eV. The intensity ratios of the vibrational components vary significantly, exhibiting a minimum at about 330 eV. The observed non-FC distribution is tentatively explained as a result of the internal inelastic scattering of the photoelectron on valence electrons, which leads to the loss of the photoelectron current that depends on the vibrational excitation of the residual ion.

Original languageEnglish
Pages (from-to)33-36
Number of pages4
JournalChemical Physics Letters
Volume411
Issue number1-3
DOIs
Publication statusPublished - 2005 Aug 5

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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    Ueda, K., Pavlychev, A., Kukk, E., Hergenhahn, U., Yoshida, H., Sunami, T., Tahara, F., Tanaka, T., Kitajima, M., Tanaka, H., De Fanis, A., & Tamenori, Y. (2005). Non-Franck-Condon behavior in the C 1s photoelectron spectrum of the methane molecule. Chemical Physics Letters, 411(1-3), 33-36. https://doi.org/10.1016/j.cplett.2005.05.118