EPR studies on a binitroxide fullerene derivative in the ground triplet and first photoexcited quintet state

It has been possible to use cw-electron paramagnetic resonance to investigate a fulleropyrrolidine with two covalently linked nitroxides in its ground state. Time-resolved electron paramagnetic resonance and spin-echo detected electron paramagnetic resonance were used to study the fulleropyrrolidine in the photoexcited state following pulsed laser excitation.