A new photoactive and highly soluble C-60-TTF-C-60 dimer: Charge separation and recombination

The covalent linkage of two [60]fullerene cores to a tetrathiafulvalene (TT F) donor affords a soluble and photoactive C-60-TTF-C-60 triad, Spectroscop ic and photophysical characterization of the C-60-TTF-C-60 triad are given. Although the cyclic voltammetry measurements reveal no notable interaction between the chromophores in the ground state, photophysical data show that in the excited state an intramolecular electron transfer, evolving from th e TTF donor to the singlet state of C-60, prevails, yielding a long-lived c harge separated radical pair.