Accession Number : AD0740138

Title :   Identity Scrambling and Isomerization Networks in Systems of Excited Alkyl Radicals.

Descriptive Note : Technical rept.,

Corporate Author : WASHINGTON UNIV SEATTLE DEPT OF CHEMISTRY

Personal Author(s) : Rabinovitch,B. S. ; Larson,C. W. ; Chua,P. T.

Report Date : 30 MAR 1972

Pagination or Media Count : 37

Abstract : The gas phase isomerization by H-atom transfer of vibrationally excited alkyl radicals of general structure G-C-C(-C)-C(.)-C has been studied; G G was an H, methyl, ethyl, iso-propyl or tert-butyl group. The radicals were produced by chemical activation by the addition of an H-atom to an appropriate alpha-olefin. The study expands on earlier findings and shows that alkyl radicals, vibrationally excited above 40 kcal/mole, are involved in a characteristic process of rapid competitive, consecutive isomerization. Details of Rice-Ramsperger-Kassel-Marcus (RRKM) rate calculations for the more important isomerization processes are described. (Author)

Descriptors :   (*FREE RADICALS, *MOLECULAR ISOMERISM), GASES, MOLECULAR ENERGY LEVELS, EXCITATION, ALKENES, REACTION KINETICS

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE