Abstract
It is shown that an analysis of energy loss spectra of electrons scattered at θ=90° in the vapor of polyatomic organic molecules allows determination of the first ionization potentials. Thus, for pyrene, perylene, and POPOP molecules they are 7.7, 7.2, and 8.7 eV, respectively. It is found that the first ionization potentials measured depend considerably on the thermal distribution of the free molecules.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 66, No. 3, pp. 351–355, May–June, 1999.
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Kazakov, S.M., Kaputerko, M.N. & Suchkov, V.A. Determination of first ionization potentials from spectra of electronic energy loss in the vapor of polyatomic organic compounds. J Appl Spectrosc 66, 375–379 (1999). https://doi.org/10.1007/BF02676768
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DOI: https://doi.org/10.1007/BF02676768