Journal of the Chemical Society. Perkin transactions II p. 1757 - 1760 (1986)
Update date:2022-08-30
Topics:
Hibbert, Frank
Sellens, Rowena J.
Dissociation of the hydrogen-bonded proton from 2-phenylazoresorcinol monoanion requires high concentrations of sodium hydroxide in aqueous solution but occurs at low hydroxide ion concentrations in 95percent (v/v) Me2SO-H2O.Kinetic studies in 95percent (v/v) Me2SO-H2O show that proton removal takes place by single-step attack of hydroxide ion on the hydrogen-bonded proton and by a two-step process through a non-hydrogen-bonded open form, with half-lives for the reaction in the range 8-20 μs.
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