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Kinetics of radiation-induced hydrogen abstraction by CCL/sub 3/ radicals in the liquid phase. Secondary alcohols. [Gamma radiation]

Journal Article · · J. Phys. Chem.; (United States)
DOI:https://doi.org/10.1021/j150621a010· OSTI ID:6071122

The dependence of the yields of products in the ..gamma..-radiation-induced free-radical reactions in carbon tetrachloride solutions of secondary alcohols on the alcohol concentration and temperature was studied in the range of 0.05 to 0.6 M and 30 to 150/sup 0/C. The rate constant for the reaction CCl/sub 3/ + R/sub 1/R/sub 2/CH0H ..-->.. CHCl/sub 3/ + R/sub 1/R/sub 2/COH (k/sub 1/) was found as log k/sub 1/ (M/sup -1/s/sup -1/) = 8.63 - 9.1/theta, where theta = 2.303 RT kcal mol/sup -1/. The activation energy is 1.8 +- 0.3 kcal mol/sup -1/ lower than for seconday hydrogens in alkanes and about the same as for the tertiary hydrogene in 2,3-dimethylbutane.

Research Organization:
Ben-Gurion Univ. of the Negev, Israel
OSTI ID:
6071122
Journal Information:
J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 84:21; ISSN JPCHA
Country of Publication:
United States
Language:
English