1. Department of Chemistry and Applied Biosciences, ETH Zürich, Wolfgang‐Pauli‐Strasse 10, 8093 Zürich (Switzerland), Fax: (+41)?44‐632‐1090;2. Current address: Metrohm AG, 9101 Herisau (Switzerland)
Abstract:
ONOO. is an important intermediate in the autoxidation of nitrogen monoxide by dioxygen. A formerly unknown red isomer of N2O4, ONOONO (see figure), formed in 2‐methylbutane at 113 K from nitrogen monoxide and dioxygen, is converted to O2NNO2 upon warming.