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Ultrafast photoinduced dynamics of halogenated cyclopentadienes: observation of geminate charge-transfer complexes in solution
Stockholm University, Faculty of Science, Department of Physics. University of Munich.
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2013 (English)In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 15, no 18, 6673-6683 p.Article in journal (Refereed) Published
Abstract [en]

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 (X = Cl, Br) radical was 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.

Place, publisher, year, edition, pages
2013. Vol. 15, no 18, 6673-6683 p.
National Category
Physical Chemistry Atom and Molecular Physics and Optics
URN: urn:nbn:se:su:diva-90016DOI: 10.1039/c3cp44295kISI: 000317866300011OAI: diva2:622034


Available from: 2013-05-20 Created: 2013-05-20 Last updated: 2013-05-20Bibliographically approved

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Schalk, Oliver
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