Abstract
Abstract[60]Fullerenes attached with piperidinodithiocarboxylate dyad (1) and 7‐chloro‐1,2,3,4‐tetrahydrophenazine (2) were efficiently synthesized through Diels‐Alder cycloaddition with dienes. The physical properties of the triplet states of these compounds, in which strong electron acceptor moieties were covalently attached to C60 cores, were investigated by nanosecond laser flash photolysis. The excited triplet states in benzonitrile have been evaluated by observing the transient absorption bands in the near‐IR region. The HOMO and LUMO were calculated by semiempirical methods AM1, which could predict the intramolecular photoinduced electron transfer in 1 and 2, and the nanosecond transient absorption spectra observed experimentally in solution were in excellent agreement with the calculated ones.
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