RATE CONSTANTS FOR OZONE FORMATION AND FOR ISOTOPIC EXCHANGE-REACTIONS

Rate constants for the formation of ozone O2+O+M-->O3+M and the isotopic substitution reactions O-16+O-18(2)-->O-16O-18+O-18, and O-18+O-16O-18-->O-18(2)+O-16 have been calculated using two different potential energy surfaces. The calculations have been carried out using a quasiclassical trajectory method in which the classical equations of motion are solved using hyperspherical coordinates for the three-body problem. The ter-molecular rate constant for the formation of ozone has been obtained from the calculated life-times of the ozone molecules formed by the O2 + O colliSionS Using a simple collision model for the O3 + M stabilization.