POTENTIOMETRIC AND THERMODYNAMIC INVESTIGATION OF RHENIUM(V) COMPLEXES WITH 1-METHYL-2-MERCAPTOIMIDAZOLE

Authors

G. GOUDA, Chemistry department, Faculty of science, Azhar University, Asyut, Egypt
M. SHATAT, Chemistry department, Faculty of science, Azhar University, Asyut, Egypt
T. SEAF ELNASR, Chemistry department, Faculty of science, Azhar University, Asyut, Egypt
M. ABDALLAH, Chemistry department, Faculty of science, Azhar University, Asyut, Egypt

Corresponding Author

,

Document Type

Original Article

Subject Areas

Chemistry

Keywords

Potentiometric; rhenium(V); formation constants; Thermodynamics

Abstract

Stability constants of 1-methyl-2-mercaptoimidazole with rhenium(V) were determined potentiometrically in acidic medium (4 M HCl) at different temperatures. The dissociation constants pK of 1-methyl-2-mercaptoimidazole as well as the stability constants (log K) of their complexes were determined at varieties temperatures. The corresponding thermodynamic parameters (∆Go, ∆Ho and ∆So) were determined and discussed. The formation of the metal complexes has been found to be exothermic.

How to Cite This Article

GOUDA, G.; SHATAT, M.; SEAF ELNASR, T.; and ABDALLAH, M. (2013) "POTENTIOMETRIC AND THERMODYNAMIC INVESTIGATION OF RHENIUM(V) COMPLEXES WITH 1-METHYL-2-MERCAPTOIMIDAZOLE," Al-Azhar Bulletin of Science: Vol. 24: Iss. 2, Article 11.
DOI: https://doi.org/10.21608/absb.2013.6415