Title of article :
Photoinduced electron transfer in [N]phenylenes
Carsten Dosche، نويسنده , , C. and Mickler، نويسنده , , W. and Lِhmannsrِben، نويسنده , , H.-G. and Agenet، نويسنده , , N. and Vollhardt، نويسنده , , K.P.C.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
First studies of electron transfer in [N]phenylenes were performed in bimolecular quenching reactions of angular - and triangular phenylene with various electron acceptors. The relation between the quenching rate constants kq and the free energy change of the electron transfer ( Δ G CS 0 ) could be described by the Rehm–Weller equation. From the experimental results, a reorganization energy λ of 0.7 eV was derived.
olecular electron transfer reactions were studied in an [N]phenylene bichomophore and a corresponding reference compound. Fluorescence lifetime and quantum yield of the bichromophor display a characteristic dependence on the solvent polarity, whereas the corresponding values of the reference compound remain constant. From the results, a nearly isoenergonic charge separation process can be determined. As the triplet quantum yield is nearly independent of the polarity, charge recombination leads to the population of the triplet state.
photoinduced electron transfer
Journal title :
Journal of Photochemistry and Photobiology:A:Chemistry