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oai:ojs.www.eurjchem.com:article/583 2012-08-06T14:50:19Z eurjchem:ART driver

Kinetics and mechanism of aquation of bromopentammine cobalt(III) cation assisted by ion-pairing succinate anion in ethane-2-diol-water mixtures Ismail, Amel Moustafa Seleim, Seleim Mohamed Zaghloul, Amal Abd-El-Hamid Amira, Mohamed Fawzy Ion-pairing Ethane-1 2-diol Solvent effect Thermodynamics Kinetics of aquation Bromopentammine cobalt(III) The aquation kinetics of bromopentammine cobalt(III) ion has been investigated in the presence of different concentrations of succinate ion in aqueous medium and that mixed with ethane-1,2-diol (up to 50%, w/w) within the temperature range (35-65 oC). The ion-pairing succinate ion concentration (L) and the observed rate constant have been determined at different experimental conditions. The thermodynamic parameters of activation have been calculated and discussed in terms of solvent effects. Also the extrathermodynamic analyses of the obtained results have been discussed on the basis of solute-solvent and solvent-solvent interactions. An empirical correlation between the rate coefficient and the concentration of the ion-pairing succinate ligand (L) has been established and a suggested reaction mechanism is proposed. Atlanta Publishing House LLC 2012-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://www.eurjchem.com/index.php/eurjchem/article/view/583 10.5155/eurjchem.3.2.196-201.583 European Journal of Chemistry; Vol. 3 No. 2 (2012): June 2012; 196-201 2153-2257 2153-2249 eng https://www.eurjchem.com/index.php/eurjchem/article/view/583/PDF