Two-electron redox chemistry of p-nitro- and p-cyanobenzene diazohydroxides

James McEvoy, Nhan Pham, Hong Le, Micah Fernandez, Ryan Farmer, Surendra Mahapatro

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The electrochemistry of aryl diazonium salts is usually dominated by one-electron reduction, loss of dinitrogen, and the grafting of aryl radicals onto the electrode. In contrast, p-nitro- and p-cyanobenzene diazonium salts dissolved in mixed aqueous-acetonitrile solvents showed diffusion-limited, quasireversible, two-electron cyclic voltammetry. Voltammetric pH-dependence and spectrophotometric kinetic studies suggest that the basicity and low polarity of the aqueous solvent mixture has revealed the biologically-significant interconversion of diazohydroxide and diazene.
Original languageEnglish
Pages (from-to)41762-41766
Number of pages5
JournalRsc advances
Issue number73
Early online date13 Dec 2018
Publication statusE-pub ahead of print - 13 Dec 2018

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