Knowledge Bank

When a $Ne:H2O2+$ sample is codeposited at approximately 5 K with a beam of microwave-excited neon atoms, photoionization and Penning ionization of the $H2O2$ leads to the stabilization of the $H2O2+$ cation. Although the energy of the excited neon atoms exceeds that required that required for the formation of $HO2+$ from $H2O2+$, as has been previously found in photonization studies, the yield of this fragment ion is small. The infrared spectra observed for $H2O2+$ and for the deuterium-substituted isotopomers will be compared with those predicted by ab initio calculations.