Triplet states of oligothiophenes and C60 were excited by a pulsed laser light using a Nd:YAG laser. The finestructure values D, E of different endcapped oligothiophenes (EC3T, EC4T, and ECST) were determined from pulsed EPR-spectra. Time resolution was applied to study the kinetics and relaxation times. A photoinduced electron transfer from EC4T to C60 in liquid solutions was investigated in detail. Fourier transform of the free induction decays results in spectra of the transient triplet state and of the transient C60 monoradical anion. Electron transfer rates were deduced from the observed triplet quenching rates at different temperatures.
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Bennati et al. (1994) studied this question.
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