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"Ultrafast photoinduced dynamics of halogenated cyclopentadiene: Observation of geminate charge-transfer complexes in solution" T. J. A.Wolf, O. Schalk, R. Radloff, G.Wu, P. Lang, A. Stolow, A.-N. UnterreinerPhys. Chem. Chem. Phys., in print Abstract: The photoinduced dynamics of the fully halogenated cyclopentadienes C5Cl6 and C5Br6 have been investigated in solution and gas phase by femtosecond time-resolved spectroscopy. Both in solution and in gas phase, homolytic dissociation into a halogen radical and a C5X5 radical were observed. In liquid phase, solvent-dependent formation of charge transfer complexes between geminate radicals was observed for the first time. These complexes were found to be surprisingly stable and offered the opportunity to follow the dynamics of specific radical pairs. In the case of C5Cl6 in trichloroethanol, a reaction of the chlorine radical with molecules from the solvent cage was observed. BMO authors (in alphabetic order): Peter Lang Oliver Schalk |
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Letzte Änderung: 2016-09-14 13:34
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