Abstract
The recombination dynamics of ion pairs formed by the photoexcitation of donor—acceptor complexes in a polar solvent was investigated using the stochastic approach. The reorganization of high-frequency intramolecular vibrational modes plays an important role in these reactions. It was shown for the perylene—tetracyanoethylene complex in acetonitrile solution that the overwhelming majority of ion pairs recombined at the hot stage, during solvent polarization relaxation.
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