Polarographic Investigations of Some 2-Arylazo-2-bromo-5,5- -dimethylcydohexane-l,3-diones
نویسنده
چکیده
Polarographic reduction of 2-arylazo2-bromo-5,5-dimethylcyclohexane-1,3-diones takes place in a single step involving two electrons. Well-defined, diffusion controlled, irreversible waves are obtained in the pH range 2.0 -11.0. The Ei,2 value shifts towards more negative potentials with increasing pH. Methyl, Methoxy, chloro, bromo and ethoxy groups show positive polarographic ortho shift (~o). The effect of substituents has been interpreted in terms of the Hammett equation.
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