Ultrafast photoinduced dynamics of halogenated cyclopentadienes: Observation of geminate charge-transfer complexes in solution

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DOIResolve DOI: http://doi.org/10.1039/c3cp44295k
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TypeArticle
Journal titlePhysical Chemistry Chemical Physics
ISSN1463-9076
Volume15
Issue18
Pages66736683; # of pages: 11
Subjectcyclopentane derivative; article; chemistry; gas; halogenation; quantum theory; solution and solubility; ultraviolet radiation; X ray photoelectron spectroscopy; Cyclopentanes; Gases; Halogenation; Photoelectron Spectroscopy; Quantum Theory; Solutions; Ultraviolet Rays
AbstractThe photoinduced dynamics of the fully halogenated cyclopentadienes C 5Cl6 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 C 5Cl6 in trichloroethanol, a reaction of the chlorine radical with molecules from the solvent cage was observed. © 2013 the Owner Societies.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC)
Peer reviewedYes
NPARC number21270617
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Record identifierf3b61df6-1d96-471a-9a22-9df9a30e76b3
Record created2014-02-17
Record modified2016-05-09
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