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Ionization Potentials and the Structures of the Photo-ionization Yield Curves of Ethylene and its Halogenoderivatives

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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