Abstract
Fourier transform EPR spectroscopy was employed in studying the electron transfer (ET) reaction and the quenching mechanisms of the photoexcited triplet state of C60 as electron acceptor and N,N,N′,N′-tetramethylbenzidine (NTMB) as electron donor in benzonitrile solution. The ET reaction product, the cation radical NTMB*+, interacts with 3*C60, leading to photoinduced electron polarization of NTMB*+ via triplet-doublet mixing mechanism combined with triplet mechanism. The quenching of 3*C60 and the polarization behavior of NTMB*+ are discussed.
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