Electrochemical and Photophysical Properties of a Novel Polythiophene with Pendant Fulleropyrrolidine Moieties:  Toward “Double Cable” Polymers for Optoelectronic Devices

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We have prepared a novel bithiophene carrying a fulleropyrrolidine substituent. Its electrochemical polymerization affords an electron donor−acceptor material that has been studied by means of electrochemical and spectroscopic techniques. The results from photoinduced absorption (PIA) and light-induced electron spin resonance (LESR) experiments demonstrate a photoinduced electron transfer from the polythiophene backbone to the tethered acceptor moieties.