Molecular beam study of iodine atom abstraction by oxygen atoms

Reactive scattering of O atoms with CF3I molecules has been studied at an initial translational energy E = 32.1 kJ mol-1 using a He seeded O atom beam and at E = 13.9 kJ mol-1 using a Ne seeded O atom beam. Reactive scattering of IO product favours the backward hemisphere at low energy but becomes almost isotropic at high energy. The product translational energy distribution at low energy indicates substantial energy transfer with internal modes of the collision complex but at high energy the excess energy is disposed into product translation. (Auth.)