A kinetic study of the reaction between the 2-Ċ3H7 Radical and i-C4H8

Enthalpy of Formation of the (CH3)2CHCH2Ċ(CH3)2 Radical

László Seres, Martin Dinse, M. Görgényi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The reversible addition reaction 2-Ċ3H7+ i-C4H8 ⇌ (CH3)2CHCH2Ċ(CH3)2 was studied in the temperature range 491-543 K by product analysis in experiments in which 2-Ċ3H7 radicals were generated by the thermal decomposition of azoisopropane. The enthalpy of formation of the radical (CH3)2CHCH2Ċ(CH3)2 was determined, the value obtained being ΔfH° = -21.8 ± 5.2 kJ mol-1. From this result, the following group value was deduced: ΔfH°[Ċ-(C)3] = 177.1 kJ mol-1. From the latter, ΔfH°(t-Ċ4H9) = 51.6 kJ mol-1 was estimated. The rate constant of self-combination of the radical (CH3)2CHCH2Ċ(CH3)2 was determined for the first time: log(k12/(dm3 mol-1 s-1)) = 7.3.

Original languageEnglish
Pages (from-to)469-478
Number of pages10
JournalZeitschrift fur Physikalische Chemie
Volume218
Issue number4
DOIs
Publication statusPublished - 2004

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Addition reactions
Byproducts
Enthalpy
Rate constants
Pyrolysis
enthalpy
Kinetics
kinetics
Experiments
Temperature
thermal decomposition
temperature

Keywords

  • (CH)CHCHĊ(CH) radical
  • Enthalpy of formation
  • Rate constant of combination

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Atomic and Molecular Physics, and Optics

Cite this

A kinetic study of the reaction between the 2-Ċ3H7 Radical and i-C4H8 : Enthalpy of Formation of the (CH3)2CHCH2Ċ(CH3)2 Radical. / Seres, László; Dinse, Martin; Görgényi, M.

In: Zeitschrift fur Physikalische Chemie, Vol. 218, No. 4, 2004, p. 469-478.

Research output: Contribution to journalArticle

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