The effect of the medium polarity on the mechanism of the reaction of hydroxybenzenes with hydrazyl radical in aprotic solvents
- Autores: Belaya N.1, Belyj A.1, Zarechnaya O.2, Scherbakov I.3, Mikhalchuk V.1, Doroshkevich V.1
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Afiliações:
- Donetsk National University
- Litvinenko Institute of Physico-Organic Chemistry and Coal Chemistry
- Southern Federal University
- Edição: Volume 87, Nº 4 (2017)
- Páginas: 690-697
- Seção: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/219156
- DOI: https://doi.org/10.1134/S1070363217040053
- ID: 219156
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Resumo
Mechanisms of the reaction of di- and trihydroxybenzenes with 2,2′-diphenyl-1-picrylhydrazyl (stable radical) in aprotic media of different polarity have been elucidated by experimental and quantum-chemical methods. Kinetic, stoichiometric, and activation parameters of the reaction have been determined. In benzene (nonpolar solvent), the studied reaction occurs via the hydrogen atom transfer mechanism; in the polar solvent with weak ionizing ability (i.e. DMSO), the reaction predominantly occurs via the faster mechanism of coupled electron and proton transfer.
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Sobre autores
N. Belaya
Donetsk National University
Autor responsável pela correspondência
Email: nat.iv.belaya@gmail.com
Ucrânia, ul. Universitetskaya 24, Donetsk, 83001
A. Belyj
Donetsk National University
Email: nat.iv.belaya@gmail.com
Ucrânia, ul. Universitetskaya 24, Donetsk, 83001
O. Zarechnaya
Litvinenko Institute of Physico-Organic Chemistry and Coal Chemistry
Email: nat.iv.belaya@gmail.com
Ucrânia, Donetsk
I. Scherbakov
Southern Federal University
Email: nat.iv.belaya@gmail.com
Rússia, Rostov-on-Don
V. Mikhalchuk
Donetsk National University
Email: nat.iv.belaya@gmail.com
Ucrânia, ul. Universitetskaya 24, Donetsk, 83001
V. Doroshkevich
Donetsk National University
Email: nat.iv.belaya@gmail.com
Ucrânia, ul. Universitetskaya 24, Donetsk, 83001