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Photoionization of polycyclic aromatic compounds in vacuum ultraviolet region. Azulene

Authors
Journal
Journal of Molecular Spectroscopy
0022-2852
Publisher
Elsevier
Publication Date
Volume
21
Identifiers
DOI: 10.1016/0022-2852(66)90149-4
Disciplines
  • Physics

Abstract

Abstract The ionization potential and the ionization cross section of azulene have been observed by a photoionization method. The photoionization threshold value is 7.39 eV and the adiabatic ionization potential has the value 7.41 eV; which agrees quite well with the spectroscopic value, 7.41 2 eV. The ionization cross section was calculated by the photoionization quantum yield and the absorption cross section, utilizing the photon flux observed by a thermo-pile and the vapor pressure data.

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