Reactive scattering of a supersonic chlorine atom beam: Cl + C2F5I

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Abstract
Reactive scattering of Cl atoms with C2F5I molecules has been studied at an initial translational energy E = 60 kJ mol-1, using a supersonic beam of Cl atoms seeded in He buffer gas. Laboratory angular and velocity distributions of ICl product have been measured which show reaction proceeding via a short-lived collision complex. The forward and backward scattering has a higher product translational energy than the sideways scattering, with the intensity and energy of the forward scattering being higher than that of the backward scattering. These features demonstrate the effect of the large initial orbital angular momentum L 400ħ on the lifetime of the collision complex, the product translational energy and angular momentum disposal as a function of initial impact parameter.