Mechanistical studies on the formation of isotopomers of hydrogen peroxide (HOOH), hydrotrioxy (HOOO), and dihydrogentrioxide (HOOOH) in electron-irradiated H218O/O2 ice mixtures
文献情報
David Jewitt, Ralf I. Kaiser
In order to investigate the chemical reactions inside water–oxygen ice mixtures in extreme environments, and to confirm the proposed reaction mechanisms in pure water ice, we conducted a detailed infrared spectroscopy and mass spectrometry study on the electron irradiation of H218O/O2 ice mixtures. The formation of molecular hydrogen, isotopically substituted oxygen molecules 18O18O and 16O18O, ozone (16O16O16O, 16O16O18O, and 16O18O16O), hydrogen peroxide (H18O18OH, H16O16OH and H16O18OH), hydrotrioxy (HOOO), and dihydrogentrioxide (HOOOH) were detected. Kinetic models and reaction mechanisms are proposed to form these molecules in water and oxygen-rich solar system ices.
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