Potentiometric study on the complex equilibria between ni(ii) and mn(ii) and 3-(2-furyl)-2-mercaptopropenoic and 3-(2-furyl)-2-mercaptopropanoic acids |
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| Affiliation: | 1. Drug Research and Production Unit, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Nigeria;2. Department of Hematology and Immunology, Faculty of Basic Medical Sciences, College of Medicine, Obafemi Awolowo University, Ile-Ife, Nigeria;1. Unité 1138, Institut national de la santé et de la recherche médicale, 15, rue de l’École-de-Médicine, 75006 Paris, France;2. UMR S 1138, UPMC université Paris 06, Sorbonne universités, 75006 Paris, France;3. Équipe-immunopathologie et immunointervention thérapeutique, centre de recherche des Cordeliers, 75006 Paris, France;4. Department of pediatric rheumatology, National referral centre of auto-inflammatory diseases, CHU de Bicêtre, 94270 Le Kremlin-Bicêtre, France;5. UMR S 1138, université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France |
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| Abstract: | Complex formation between Ni(II), Co(II) and Mn(II) and 3-(2-furyl)-2-mercaptopropenoic and 3-(2-furyl)-2-mercaptopropanoic acids has been studied using glass electrode potentiometry. Ligand-metal ion mixtures in 10% (v/v) ethanol-water containing 0.1 mol dm–3KNO3 were titrated with potassium hydroxide. The e.m.f. data obtained have been analyzed using the linearization method, and initial estimates of protonation constants for the ligands and complex formation constants have been refined with the MINIQUAD program. |
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