The kinetics of radiation‐induced hydrogen abstraction by CCl3 radicals in the liquid phase: Cyclohexene

Zeev B. Alfassi; Liviu Feldman

doi:10.1002/kin.550130808

The kinetics of radiation‐induced hydrogen abstraction by CCl₃ radicals in the liquid phase: Cyclohexene

Zeev B. Alfassi
, Liviu Feldman

Unit of Nuclear Engineering

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The kinetics of hydrogen abstraction from cyclohexene by CCl₃ radicals were studied in CCl₄ solution as a function of cyclohexene concentration and temperature in the range of 26–140°C. The CCl₃ radicals were produced both by radiolysis of CCl₄ and by photolysis of CCl₃Br. The rate constant for the reaction (Formula Presented.) was found to be given by the equation (Formula Presented.) where θ = 2.303 RT kcal/mol. This activation energy leads to CH bond strength for the allylic hydrogen of 85 ± 1 kcal/mol, which means a resonance stabilization energy of 11 ± 1.5 kcal/mol for the C‐C₆H₁₁ radical.

Original language	English
Pages (from-to)	771-783
Number of pages	13
Journal	International Journal of Chemical Kinetics
Volume	13
Issue number	8
DOIs	https://doi.org/10.1002/kin.550130808
State	Published - 1 Jan 1981

ASJC Scopus subject areas

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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title = "The kinetics of radiation‐induced hydrogen abstraction by CCl3 radicals in the liquid phase: Cyclohexene",

abstract = "The kinetics of hydrogen abstraction from cyclohexene by CCl3 radicals were studied in CCl4 solution as a function of cyclohexene concentration and temperature in the range of 26–140°C. The CCl3 radicals were produced both by radiolysis of CCl4 and by photolysis of CCl3Br. The rate constant for the reaction (Formula Presented.) was found to be given by the equation (Formula Presented.) where θ = 2.303 RT kcal/mol. This activation energy leads to CH bond strength for the allylic hydrogen of 85 ± 1 kcal/mol, which means a resonance stabilization energy of 11 ± 1.5 kcal/mol for the C‐C6H11 radical.",

author = "Alfassi, \{Zeev B.\} and Liviu Feldman",

year = "1981",

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T1 - The kinetics of radiation‐induced hydrogen abstraction by CCl3 radicals in the liquid phase

T2 - Cyclohexene

AU - Alfassi, Zeev B.

AU - Feldman, Liviu

PY - 1981/1/1

Y1 - 1981/1/1

N2 - The kinetics of hydrogen abstraction from cyclohexene by CCl3 radicals were studied in CCl4 solution as a function of cyclohexene concentration and temperature in the range of 26–140°C. The CCl3 radicals were produced both by radiolysis of CCl4 and by photolysis of CCl3Br. The rate constant for the reaction (Formula Presented.) was found to be given by the equation (Formula Presented.) where θ = 2.303 RT kcal/mol. This activation energy leads to CH bond strength for the allylic hydrogen of 85 ± 1 kcal/mol, which means a resonance stabilization energy of 11 ± 1.5 kcal/mol for the C‐C6H11 radical.

AB - The kinetics of hydrogen abstraction from cyclohexene by CCl3 radicals were studied in CCl4 solution as a function of cyclohexene concentration and temperature in the range of 26–140°C. The CCl3 radicals were produced both by radiolysis of CCl4 and by photolysis of CCl3Br. The rate constant for the reaction (Formula Presented.) was found to be given by the equation (Formula Presented.) where θ = 2.303 RT kcal/mol. This activation energy leads to CH bond strength for the allylic hydrogen of 85 ± 1 kcal/mol, which means a resonance stabilization energy of 11 ± 1.5 kcal/mol for the C‐C6H11 radical.

UR - https://www.scopus.com/pages/publications/84985410989

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DO - 10.1002/kin.550130808

M3 - Article

AN - SCOPUS:84985410989

SN - 0538-8066

VL - 13

SP - 771

EP - 783

JO - International Journal of Chemical Kinetics

JF - International Journal of Chemical Kinetics

IS - 8

ER -

The kinetics of radiation‐induced hydrogen abstraction by CCl₃ radicals in the liquid phase: Cyclohexene

Abstract

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