Bimolecular Reactions of CIO and BrO A Summary

On the other hand, there is direct evidence that the reactions CIO + CIO and BrO + BrO near 150 N m total pressure proceed predominantly via free-radical reaction channels, giving chlorine or bromine atoms. Hence, we concentrate the present discussion on the free-radical channels, and await, hopefully, further experimental clarification on the high-pressure GO + CIO mechanisms. 

We now consider the nature of the bimolecular fireoradical channels leading to the establishment of the 2X0 2X -H O2 equilibrium, where X = G or Br. 

Reactants Products Reaction no. Aiya°98/kJ mol 5 9e/J mol K kx9tlcm molecule s Ajar molecule s EJVJ mol Ref. 

Evidence to be suminarized below, and presmted in detail elsewlme, is given for a similar reaction medianism for the QO + CIO and C30 + BrO reactions, consisting of parallel free-radical diannds (a) and (b) giving halogm atoms. 

For the BrO + BrO reaction, only reactive channel (b) is thought to be significant, even though BrOO is less strongly bound than OOO. 

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