Spin Polarization and photoinduced electron transfer between ferrocene and fullerene derivatives containing a nitroxide group.

Fulleropyrrolidine derivatives containing a TEMPO group (FPNOs) are examined in toluene solution, between 200 and 270 K, by TR-EPR spectroscopy afler LASER excitation. Signals of the ground and exeited states are observed and their time profiles are recorded. In presente of ferrocene the time pattern of the pola¡ is modified, showing the occurrence of intermoleeular electron transfer from the donor ferrocene to the excited FPNOs. The rate constant k~r is obtained from the simulation of the EPR signal time evolution of the ground and excited states.