Voltammetric studies of some azo compounds derived from 4-methyl-6,7-dihydroxy coumarin in microemulsion and aqueous media

Authors

  • Omar A. Hazazi Umm Al-Qura University, Makkah Al-Mukarramah
  • Refat El-Sayed Chemistry Department, Faculty of Applied Sciences, Umm Al-Qura University, Makkah Al-Mukarramah, Kingdom Saudi Arabia Chemistry Department, Faculty of Sciences, Benha University, Benha, Egypt Chemistry Department, Faculty of Sciences, Benha University, Benha, Egypt
  • El-Sayed. M. Mabrouk Chemistry Department, Faculty of Applied Sciences, Umm Al-Qura University, Makkah Al-Mukarramah, Kingdom Saudi Arabia Chemistry Department, Faculty of Sciences, Benha University, Benha, Egypt Chemistry Department, Faculty of Sciences, Benha University, Benha, Egypt

DOI:

https://doi.org/10.24297/jac.v7i1.971

Keywords:

Coumarin, Microemulsion, Cyclic voltammetry

Abstract

The cyclic voltammetric(CV) behavior of some azo compounds based on coumarin derivatives  was investigated in microemulsion systems and in aqueous solutions. The obtained results indicated that these compounds undergo an irreversible 4-electron reduction step leading to cleavage of the N=N center with the formation of amine compounds in all media. The effect of medium on the CV parameters was discussed. The total number of electrons involved in the reduction process was determined by controlled potential coulometry. Also, The effect of substituents on the electrode reaction pathway and the kinetic parameters of the electrode process were calculated and discussed. Based on the data obtained the electroreduction mechanism was suggested and discussed.

Downloads

Download data is not yet available.

Author Biographies

Omar A. Hazazi, Umm Al-Qura University, Makkah Al-Mukarramah

Chemistry Department, Faculty of Applied Sciences

Refat El-Sayed, Chemistry Department, Faculty of Applied Sciences, Umm Al-Qura University, Makkah Al-Mukarramah, Kingdom Saudi Arabia Chemistry Department, Faculty of Sciences, Benha University, Benha, Egypt Chemistry Department, Faculty of Sciences, Benha University, Benha, Egypt

Associate. Professor of Applied Organic Chemistry

Downloads

Published

2011-04-19

How to Cite

Hazazi, O. A., El-Sayed, R., & Mabrouk, E.-S. M. (2011). Voltammetric studies of some azo compounds derived from 4-methyl-6,7-dihydroxy coumarin in microemulsion and aqueous media. JOURNAL OF ADVANCES IN CHEMISTRY, 7(1), 1271–1279. https://doi.org/10.24297/jac.v7i1.971

Issue

Vol. 7 No. 1 (2014)

Section

Articles

License

Creative Commons License All articles published in Journal of Advances in Linguistics are licensed under a Creative Commons Attribution 4.0 International License.