Abstract
THE problem of interpreting the differences between ionization potentials obtained by electron (E.I.) and by photon impact (P.I.) has led us to a careful examination of the structures occurring in the photo-ionization yield curves of cis and trans dichloro- and dibromoethylenes1–3. The regularly spaced structures found in these curves have been interpreted in terms of vibrational progressions involving the C—C valence vibrations of the ions.
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References
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MOMIGNY, J. Ionization Potentials and the Structures of the Photo-ionization Yield Curves of Ethylene and its Halogenoderivatives. Nature 199, 1179–1180 (1963). https://doi.org/10.1038/1991179a0
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DOI: https://doi.org/10.1038/1991179a0
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