POTENTIOMETRIC AND THERMODYNAMIC INVESTIGATION OF RHENIUM(V) COMPLEXES WITH 1-METHYL-2-MERCAPTOIMIDAZOLE | ||||
| Al-Azhar Bulletin of Science | ||||
| Article 10, Volume 2013, Issue 12, December 2013, Page 141-148 PDF (527.51 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/absb.2013.6415 | ||||
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| Authors | ||||
| G. GOUDA; M. SHATAT; T. SEAF ELNASR; M. ABDALLAH | ||||
| Chemistry department, Faculty of science, Azhar University, Asyut, Egypt | ||||
| 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. | ||||
| Keywords | ||||
| Potentiometric; rhenium(V); formation constants; Thermodynamics | ||||
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