ABSTRACTION OF HALOGEN ATOMS BY METHYL RADICALS

Abstract

Halogen abstraction reactions, described by equation, RX .CH3 yields R. XCH3 were investigated in solution for R CH3, C2H5, iso-C3H7, t- C4H9, PhCH2, CH2Cl, CHCl2, CCl3 and CF3. Secondary deuterium effect was investigated for CH3 and CF3 addition reactions. Rate constants k sub 2I/k sub 1 and k sub 2Br/k sub 1 were found to be 45 and 3 x 10 to the 3rd power respectively, k sub 1 being the rate constant of the reaction PhCH2 .CH3 yields PhCH2. CH4. The values of k sub 2I/k sub 1 and k sub 2Br/k sub 1 are compared with k sub 2H/k sub 1. The activation energies difference E sub 2I - E sub 1 was determined as - 1.8 Kcal/mole for the temperature range 55-85 C.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1963
Accession Number
AD0405045

Entities

People

  • A. P. Stenfani
  • F. W. Evans
  • M. Feld
  • M. Szwarc
  • R. J. Fox

Organizations

  • Syracuse University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Addition Reactions
  • Alkenes
  • Chemical Reaction Properties
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Decomposition
  • Dissociation
  • Equations
  • Exchange Reactions
  • Governments
  • Halogens
  • Hydrocarbons
  • Hydrogen
  • Materials
  • New York
  • Organic Chemistry

Fields of Study

  • Chemistry

Readers

  • Analytical Mechanics
  • Organic Chemistry