Dissociative electron attachment to CF$_3$Cl: inclusion of two vibrational modes

We present a study of multimode effects in dissociative electron attachment to CF$_3$Cl molecules using a time-independent version of the local complex potential theory. Symmetric stretch C-Cl vibrations $\nu_3$ and symmetric deformation (or so-called ``umbrella") vibrations $\nu_2$ are included. The neutral and anion potential energy surfaces are calculated using the second-order Moller-Plesset perturbation theory with an empirical adjustment of the vertical attachment energy. The final-state vibrational distribution in the CF$_3(\nu_2)$ fragment is dominated by the $\nu_2=2$ state. We also find an increase of the total cross section as compared to one-dimensional calculations. This is explained by an increase of the anion survival probability.