Chloryl nitrate: a novel product of the OClO + NO3 + M recombination

J Phys Chem. 1992 Sep 17;96(19):7490-3. doi: 10.1021/j100198a002.

Abstract

The products of the reaction of OClO with NO3 were investigated between 220 and 298 K using a flow reactor and infrared, visible, and ultraviolet analysis. At temperatures below 250 K new infrared and ultraviolet absorption features were observed and assigned to the novel compound chloryl nitrate (O2ClONO2). Additionally, ClO and NO2 were observed as reaction products, indicating the existence of a second reaction channel. O2ClONO2 formation predominates at temperatures below 230 K. The reaction rate constant at 220 K is estimated to be on the order of 10(-14) cm3 molecule-1 s-1 in 1-5 Torr of helium. These observations suggest that O2ClONO2 may exist in the terrestrial stratosphere.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Atmosphere*
  • Chemical Phenomena
  • Chemistry, Physical
  • Chlorine / chemistry*
  • Cold Climate
  • Kinetics
  • Models, Chemical*
  • Nitrates / chemistry*
  • Oxides / chemistry*
  • Ozone
  • Photochemistry

Substances

  • Nitrates
  • Oxides
  • Chlorine
  • Ozone