Surface-induced dissociation of doubly charged CS22+ ions colliding with a self-assembled monolayer surface of fluorinated alkyl thiol on Au(111) crystal has been studied using a beam scattering instrument. Two energetically distinct processes, corresponding to Coulomb explosion and charge transfer induced dissociation have been observed and the latter process dominates the dissociation process. (C) 2007 Elsevier B.V. All rights reserved.