Electrochemical Investigation of 4`-Haloderivatives of N,N-Dimethyl-4-Aminoazobenzene

Authors : Mustafa UÇAR, Ali Osman SOLAK

Pages : 509-520

View : 17 | Download : 14

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :In this study, the electrochemical behaviour of 4` -halogene-N,N-dimethyl-4-aminoazobenzene derivatives were investigated using various polarographic and voltammetric methods. The peak potentials of these derivatives were observed to shift towards negative values with increase in pH. The standard rate constants were determined with insert ignore into journalissuearticles values(Laviron technique); or without insert ignore into journalissuearticles values(Nicholson and Klingler-Kochi techniques); taking the adsorption phenomena into account. The diffusion coefficients were calculated from the cyclic voltammetric data using the method developed by Garrido. The amount of adsorbed substances insert ignore into journalissuearticles values(surface excess values); and transfer coefficients for the electron transfer were also determined. These compounds can be quantitatively determined between 1 x 10-5 M to 2 x 10-7 M with DPP.
Keywords : Azo compounds, polarography, cyclic voltammetry, rate constant, adsorption