Issue 20, 2007
From the journal:

Physical Chemistry Chemical Physics

Mechanistical studies on the formation of isotopomers of hydrogen peroxide (HOOH), hydrotrioxy (HOOO), and dihydrogentrioxide (HOOOH) in electron-irradiated H218O/O2 ice mixtures†

Weijun Zheng,ab   David Jewitta  and  Ralf I. Kaiser*b  

* Corresponding authors

a Institute for Astronomy, University of Hawaii at Manoa, Honolulu

b Department of Chemistry, University of Hawaii at Manoa, Honolulu
E-mail: kaiser@gold.chem.hawaii.edu

Abstract

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.

Graphical abstract: Mechanistical studies on the formation of isotopomers of hydrogen peroxide (HOOH), hydrotrioxy (HOOO), and dihydrogentrioxide (HOOOH) in electron-irradiated H218O/O2 ice mixtures

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Article information

DOI
https://doi.org/10.1039/B700814G
Article type
Paper
Submitted
18 Jan 2007
Accepted
26 Feb 2007
First published
13 Mar 2007

Phys. Chem. Chem. Phys., 2007,9, 2556-2563

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Mechanistical studies on the formation of isotopomers of hydrogen peroxide (HOOH), hydrotrioxy (HOOO), and dihydrogentrioxide (HOOOH) in electron-irradiated H218O/O2 ice mixtures

W. Zheng, D. Jewitt and R. I. Kaiser, Phys. Chem. Chem. Phys., 2007, 9, 2556 DOI: 10.1039/B700814G

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