THE PHOTOREACTIVITY OF CHLORINE DIOXIDE

Determining the detailed photoreactivity of radicals that are of impor tance in atmospheric processes requires information from both laborato ry and field measurements and theoretical calculations. Laboratory exp eriments and quantum calculations have been used to develop a comprehe nsive understanding of the photoreactivity of chlorine dioxide (OCIO). The photoreactivity is strongly dependent on the medium (gas phase, l iquid solution, or cryogenic matrix). These data reveal details of the complex chemistry of OCIO. The potential role of this radical in stra tospheric ozone depletion is discussed in accord with these laboratory measurements.