TY  - GEN
A1  - Dosche, Carsten
A1  - Mickler, Wulfhard
A1  - Löhmannsröben, Hans-Gerd
A1  - Agenet, Nicolas
A1  - Vollhardt, K. Peter C.
T1  - Photoinduced electron transfer in [N]phenylenes
N2  - First studies of electron transfer in [N]phenylenes were performed in bimolecular quenching reactions of angular [3]- and triangular [4]phenylene with various electron acceptors. The relation between the quenching rate constants kq and the free energy change of the electron transfer (ΔG0CS ) could be described by the Rehm-Weller equation. From the experimental results, a reorganization energy λ of 0.7 eV was derived. Intramolecular 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 ΔG0CS can be determined. As the triplet quantum yield is nearly independent of the polarity, charge recombination leads to the population of the triplet state.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 23 
KW  - [N]phenylenes
KW  - photoinduced electron transfer
KW  - [N]phenylene dyads
Y1  - 2007
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/1150
UR  - https://nbn-resolving.org/urn:nbn:de:kobv:517-opus-12463
ER  -