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Article
2018

Kinetics, Mechanistic and Theoretical Studies on Scavenging Activities of Antioxidants Using 1,2-Dinitrobenzene DNB/DNB•− and DNB/DNB2– Model Systems: Cyclic Voltammetric and Quantum Semi-Empirical Data Interpretation


N. ArshadN. Arshad, N. K. JanjuaN. K. Janjua
Russian Journal of Electrochemistry
https://doi.org/10.1134/S1023193518140021
Abstract / Full Text

Here we are presenting complete electrochemical studies on redox activities of 1,2-dinitrobenzene (DNB) in the presence of antioxidants–quercetin, morin, rutin, ascorbic acid and β-carotene. Bimolecular rate constants (k2), antioxidant activities (Ka) and diffusion coefficients (Do) were evaluated from changes in voltammeric responses and electrochemical parameters in the presence of antioxidant’s concentrations. Theoretical charge calculations by PM3 parameterization were done which further justified our experimental electrochemical work and proposed scavenging mechanism. Present findings were also compared in details with our previously reported studies on 1,3- and 1,4-dinitrobenzene systems for their interactions with antioxidants.

Author information
  • Department of Chemistry, Allama Iqbal Open University, Islamabad, PakistanN. Arshad
  • Department of Chemistry, Quaid-i Azam University, Islamabad, PakistanN. K. Janjua
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