Electron impact ionization of Ba(OH)2(g)

Abstract

An electron impact ionization study of the Ba(OH)2(g) molecule has been completed. The observed intensities of the Ba(OH)2+ ion reach a maximum at 22 eV, with rapid decline thereafter, and become negligible at 70 eV. The observed phenomenon at the high electron energies appears to be the result of bond fragmentation to produce the hydroxide monomer, and not a displacement of the potential minima. This phenomenon is similar to that found in the periodic Group II dihalogen compounds. The ionization potential of Ba(OH)2 was found to be 8±1 eV, with a value of 6±1 eV for the monohydroxide.