Ozone isotope enrichment: Isotopomer-specific rate coefficients

Six rate coefficients of relative ozone formation contradict the role of mo lecular symmetry in the process that results in the enrichment of heavy ozo ne isotopomers. The results show that collisions between Light atoms, such as O-16, and heavy molecules, such as O-34(2) O-36(2), have a rate coeffici ent advantage of about 25 and 50 percent, respectively. over collisions inv olving heavy atoms and Light molecules, These results suggest that the obse rved isotope effect for each isotopomer may be caused by the preponderance of a single reaction channel and not through molecular symmetry selection.