Synthesis and Photoinduced Intramolecular Processes of Fulleropyrrolidine–Oligothienylenevinylene–Ferrocene Triads
作者： Frédéric Oswald , D.-M. Shafiqul Islam , Yasuyuki Araki , Vincent Troiani , Pilar de la Cruz
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摘要: Two new triads based on N-methylfulleropyrolidine, oligothienylenevinylenes (nTV) and ferrocene (Fc), namely C(60)-nTV-Fc (n=2, 4) have been synthesized. A HOMO-LUMO gap as low 1.09-1.11 eV was experimentally determined by cyclic voltammetry. In both polar nonpolar solvents, photoinduced charge-separation (CS) processes in predominantly take place from the singlet excited states of C(60) nTV; this result indicated steady time-resolved emission spectroscopy. case C(60)-4TV-Fc, CS state nanosecond transient absorption spectra. C(60)-2TV-Fc, although process also confirmed fluorescence quenching lifetimes were shorter than those C(60)-4TV-Fc. It revealed that introduction Fc donor moiety at end longer nTV chain C(60)-nTV dyad systems effectively increases efficiency states.
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