Formation of H₃O⁺ in the Ionization and Fragmentation of Ethanol Induced by Electron Beam Irradiation

Figure 1

The binding energy spectra related to the C₂H₅OH⁺ and C₂H₄OH⁺ cations. The black solid circles and the black solid triangles with error bars represent the experimental data of C₂H₅OH⁺ and C₂H₄OH⁺, respectively. The data for both ions are normalized to unity at the maximum. The red and blue solid curves are Gaussian fits. At the top of the plot, red solid vertical lines indicate the ionization energies of valence orbitals [32].