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Vol. 26 No. 9 (2014): Vol 26 Issue 9

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Determination of Stability Constants of Mixed Ligand Complexes of Sulfanilamide and Other Bioactive Ligands with Cu(II) by Potentiometric Titration Method

https://doi.org/10.14233/ajchem.2014.15740
Reda A. Ammar
Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia; Department of Chemistry, College of Science, Al Azhar University, Cairo, Egypt
Nada M. Arishy
Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
Abdulrhman Al-Warthan
Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia, Department of Chemistry, College of Science, Al-Azhar University, Cairo, Egypt

Corresponding Author(s) : Reda A. Ammar

rammar@ksu.edu.sa

Asian Journal of Chemistry, Vol. 26 No. 9 (2014): Vol 26 Issue 9

Abstract

The stability constants of ternary complexes of Cu(II) with sulfanilamide drug (S) as primary ligand and some of bioligands viz., amino acids and peptides as secondary ligand were determined pH-metrically at 25 °C and ionic strength 0.1 mol /L NaNO3 in aqueous solution. The stability of each ternary complexes was investigated and compared with those of the corresponding binary complexes in terms of the D log K parameter. The concentration distribution of the complexes formed in solution was evaluated.

Keywords

Potentiometric studies Sulfanilamide Mixed ligand complexes Stability constants
A. Ammar, R., M. Arishy, N., & Al-Warthan, A. (2014). Determination of Stability Constants of Mixed Ligand Complexes of Sulfanilamide and Other Bioactive Ligands with Cu(II) by Potentiometric Titration Method. Asian Journal of Chemistry, 26(9), 2583–2587. https://doi.org/10.14233/ajchem.2014.15740
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