fulleropyrrolidine; nanosecond transient spectra; charge-separated state
【摘要】
N-Methyl-2-(N-ethylcarbozole)- fulleropyrrolidine and N-methyl-2- (4'-N,N- diphenylaminophenyl)- fulleropyrrolidine were synthesized by 1,3-dipolar cycloaddition under microwave irradiation, which were characterized by MS, 1H NMR, IR and UV–Vis. Photoinduced intramolecular electron transfer process from C60 moiety to carbazole moiety has been studied by nanosecond laser flash photolysis. The charge-separated state C60?-–Cz?+ was observed in the near-IR region with a lifetime of 0.28 μs. The electronic spectrum of the C60-TPA was studied by using ZINDO method on the basis of the optimized geometrics with B3LYP/6-31G* program. The results show that the calculated absorption was beyond 440nm, essentially consistent with the experimental value 433 nm.
