Charge transfer processes in asymmetric fragmentation of C-60(5+)

The kinetic energy release for the reaction channels C-60(5+) --> C-60-n(5) + C-n(+) has been measured from the time of flight profiles of C-n(+) for 2 < n < 6. The related intercharge exchange distance correlates sensitivel y with the ionization potential of the C-n clusters and is comparable to th e resonant charge transfer distance obtained with the classical barrier mod el. Highly charged C-60(5+) was prepared by electron capture from a low ene rgy Ar8+ beam and a multicoincidence technique was used to select each reac tion channel.