Figure 11. XY position of the COM of the reactive molecules at the time of the dissociation (see text for definition). The COM positions have been reported in the minimum wedge and then replicated in the 2x2 super-cell using symmetry operations. Direct and indirect events are indicated as red and blue circles respectively. Tungsten first layer atoms in their equilibrium positions are shown as gray circles. The *.dat files contain all the center on mass fo the reactive trajectories at the time of the dissociation. data are reported in cartesian coordinates (Angstrom).