Electroreduction mechanism of <Emphasis Type="Italic">N</Emphasis>-phenylhydroxylamines in aprotic solvents: formation of hydrogen bonds between <Emphasis Type="Italic">N</Emphasis>-(3-nitrophenyl)hydroxylamine and its radical anion |
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Authors: | Email author" target="_blank">A?S?MendkovichEmail author M?A?Syroeshkin V?P?Gultyai A?I?Rusakov |
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Institution: | 1.N. D. Zelinsky Institute of Organic Chemistry,Russian Academy of Sciences,Moscow,Russian Federation;2.P. G. Demidov Yaroslavl State University,Yaroslavl,Russian Federation |
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Abstract: | The electroreduction of N-(3-nitrophenyl)hydroxylamine in DMF was studied using cyclic voltammetry, chronoamperometry, and numerical simulation. It is shown that the stability of formed radical anion is significantly higher than that of the radical anion of the 4-nitrophenyl derivative. In the range of low concentrations and high potential scan rates, the electroreduction of N-(3-nitrophenyl)hydroxylamine is complicated only by the formation of complexes between the depolarizer molecules, most likely, due to hydrogen bonds, as well as between the depolarizer and its radical anion. The thermodynamic and kinetic parameters of these processes were evaluated. |
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