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- Title
Analysis of the reactivities of organic compounds in hydrogen atom abstraction from their C-H bonds by the sulfate radical anion SO.
- Authors
Khursan, S.; Semes’ko, D.; Teregulova, A.; Safiullin, R.
- Abstract
An experimental rate constant data array (>50 values) for the reactions of the sulfate radical anion with the C-H bonds of various organic compounds is analyzed by Denisov’s intersecting parabolas method. The data array is divided into the following four groups according to the type of the C-H bond attacked and the br e value: compounds with primary C-H bonds ( br e = 13.14 ± 0.17), compounds with secondary C-H bonds remote from the polar groups ( br e = 12.64 ± 0.34), compounds with secondary α-C-H bonds ( br e = 13.28 ± 0.24), and compounds with tertiary C-H bonds. It is demonstrated by DFT calculations that the rate constant of the reaction SO + RH is determined by nonspecific solvation and by the ion-dipole interaction in the transition state of the reaction.
- Subjects
ORGANIC compounds; CARBON compounds; ANIONS; ORGANIC chemistry; SULFATES
- Publication
Kinetics & Catalysis, 2008, Vol 49, Issue 2, p202
- ISSN
0023-1584
- Publication type
Article
- DOI
10.1134/S0023158408020067