Radiolytic preparation, chromatographic resolution and absorption spectra of cis- and trans-1-iodopropene

R. H. Schuler, L. Wojnarovits

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1 Citation (Scopus)


1-Iodopropene has been prepared in its cis and trans configurations by scavenging the 1-propenyl radical produced in the dissociative attachment of electrons to cis- and trans-1-bromopropene with iodine. Gel permeation methods have been used to separate these two isomers. The chromatographic data show that identical ratios of these isomers are produced from each of the 1-bromopropene isomers as the result of interchange of the cis and trans configurations of the vinyl like 1-propenyl radical on a time scale shorter than that for the scavenging process, i.e., <10ns. Radiochemical studies show that at equilibrium the trans/cis ratio for the two configurations of the radical is 1.76. This ratio indicates that the cis configuration of the radical is 0.35kcal/mol higher in energy than the trans configuration.

Original languageEnglish
Pages (from-to)219-224
Number of pages6
JournalRadiation Physics and Chemistry
Issue number3-4
Publication statusPublished - Jun 1 2003


  • 1-Propenyl radical
  • Gel permeation chromatographic analysis
  • Hydrocarbon radiolysis
  • Radical scavenging
  • cis/trans-1-Iodopropene

ASJC Scopus subject areas

  • Radiation

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