Studies of Porphyrin-fullerene dyads with oligoethylene glycols spacers in solution

Two novel Porphyrin-fullerene dyads (PFDs) were synthesized, in which flexible spacers of oligoethylene glycol chains were incorporated with different numbers of ethylene glycol moieties. And the emission and electrochemical properties were examined. From the estimations of the quantum yields and free energy, ΔG, for the electron transfer reaction in the excited state, our novel PFDs were suggested to have an efficient electron transfer capability required for compounds constituting artificial photosynthesis system.