Superoxide Anion Radical Interaction With New Quinoline Compounds Measured By Cyclic Voltammetry

Authors

  • Khaoula Douadi Laboratory of Electrochemical of Molecular Materials and Complex LEMMC. Department of Process Engineering, Faculty of Technology, University Ferhat ABBAS Setif
  • Ilhem Kaabi Laboratory of Electrochemical of Molecular Materials and Complex LEMMC. Department of Process Engineering, Faculty of Technology, University Ferhat ABBAS Setif
  • Tahar Daoudi Laboratory of Electrochemical of Molecular Materials and Complex LEMMC. Department of Process Engineering, Faculty of Technology, University Ferhat ABBAS Setif
  • Mousa Al-Noaim Department of Chemistry, Hashemite University, Zarqa , Jordan.
  • Salah Chafaa Laboratory of Electrochemical of Molecular Materials and Complex LEMMC. Department of Process Engineering, Faculty of Technology, University Ferhat ABBAS Setif

DOI:

https://doi.org/10.58452/jpcr.v1i1.29

Keywords:

Quinoline derivative, Superoxide radical O∙2 −, Cyclic voltammetry, Binding parameters

Abstract

Cyclic voltammetry was used to study the interaction of four quinoline
∙ −derivatives with superoxide anion radical (O 2 ). This method is based
on the decrease of the anodic peak current of the superoxide anion
radical O∙ 2 − generated electrochemically by the reduction of molecular
oxygen O2 dissolved in acetonitrile. The results obtained reveal that all
derivatives showed a higher antioxidant activity than the standard used
BHT. The binding parameters of the studied compounds were
estimated in terms of binding constant (kb ), ratio of Binding Constants
(K Red ⁄K Ox ) and binding Gibbs free energy (ΔG°). From the results, it
appears that the binding constant kb of the tested compounds is very
high ranged from 15922 to 26181 L.mol-1 while negative values of ΔG°
indicate the spontaneity of the antiradical reaction. It was also found
that interaction of the reduced form O∙ 2 − with all derivatives is stronger
than the oxidized form O2 with ratio of binding constants values in the
range 1.21-159.

 

 

Author Biographies

Khaoula Douadi, Laboratory of Electrochemical of Molecular Materials and Complex LEMMC. Department of Process Engineering, Faculty of Technology, University Ferhat ABBAS Setif

 

 

Ilhem Kaabi, Laboratory of Electrochemical of Molecular Materials and Complex LEMMC. Department of Process Engineering, Faculty of Technology, University Ferhat ABBAS Setif

 

 

 

Tahar Daoudi, Laboratory of Electrochemical of Molecular Materials and Complex LEMMC. Department of Process Engineering, Faculty of Technology, University Ferhat ABBAS Setif

 

 

Mousa Al-Noaim, Department of Chemistry, Hashemite University, Zarqa , Jordan.

 

 

Salah Chafaa, Laboratory of Electrochemical of Molecular Materials and Complex LEMMC. Department of Process Engineering, Faculty of Technology, University Ferhat ABBAS Setif

 

 

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Published

2022-06-01

How to Cite

Douadi, K., Kaabi, I. ., Daoudi, T., Al-Noaim, M., & Chafaa, S. (2022). Superoxide Anion Radical Interaction With New Quinoline Compounds Measured By Cyclic Voltammetry. Journal of Physical & Chemical Research, 1(1), 32–39. https://doi.org/10.58452/jpcr.v1i1.29

Issue

Vol. 1 No. 1 (2022): v1i12022

Section

Articles