Photoion and photoelectron spectroscopy of oxygen

Abstract

Photoion and photoelectron kinetic energy distributions of O₂ have been measured at a number of incident monochromatic wavelengths extending down to 304 Å. By correlating energies and intensities in the ion and electron spectra at each wavelength, dissociation limits are assigned for the ²Π_u(III), c ⁴Σ⁻_u, and ⁴Σ_g(σ_g2s) molecular states of O₂⁺. Other processes are suggested to explain the remaining peaks appearing in the photoion spectra.