Rate constants for the addition of the 2-cyano-2-propyl radical to alkenes in solution

K. Heberger, H. Fischer

Research output: Contribution to journalArticle

91 Citations (Scopus)

Abstract

Absolute rate constants for the addition of the 2-cyano-2-propyl radical to 26 alkenes CH2 = CXY at 315 K were determined in solution by time-resolved electron-spin-resonance spectroscopy. They vary with the alkene substituents from 30 M-1 s-1 to 7′010 M-1 s-1. For styrene the temperature dependence is given by log k/M-1 s-1 = 7.7 - 26.1/Θ where Θ = 2.303 RT in kJ/mol. An analysis of the substituent effects in terms of polar and enthalpic factors reveals a dominant influence of the overall reaction enthalpy.

Original languageEnglish
Pages (from-to)249-263
Number of pages15
JournalInternational Journal of Chemical Kinetics
Volume25
Issue number4
Publication statusPublished - Apr 1993

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Alkenes
alkenes
Olefins
Rate constants
Electron spin resonance spectroscopy
Styrene
Electron Spin Resonance Spectroscopy
styrenes
Enthalpy
electron paramagnetic resonance
enthalpy
temperature dependence
Temperature
spectroscopy

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Cite this

Rate constants for the addition of the 2-cyano-2-propyl radical to alkenes in solution. / Heberger, K.; Fischer, H.

In: International Journal of Chemical Kinetics, Vol. 25, No. 4, 04.1993, p. 249-263.

Research output: Contribution to journalArticle

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