Figure 2. (a) 300eV O+ colliding with O2 with O+ traveling at 0 degrees in reference to the molecular axis of O2 and hitting head-on OI of O2, no dissociation at 300eV; (b) 36eV O+ traveling at 5 degrees in reference to the molecular axis of O2 and hitting head-on OI of O2, dissociation evident at 36eV.