1
Department of Chemistry, Tabriz University, Tabriz, I.R. IRAN
2
Department of Chemistry, Manchester University, M13 9PL, ENGLAND
10.30492/ijcce.1987.12271
Abstract
The kinetics of substitution of [Ti(ur)6]3+ by H2O and SCN¯ ion in ethanol solution have been measured spectrophotometrically by stopped-flow method. Water is a good nucleophile toward Ti(III) substrates. Even the solvent ethanol appears to be a poor ligand when compared to water. Substitution, in general follows two parallel pathways: "direct" (second order) reaction and solvolysis followed by rapid substitution (first order). Both mechanisms are important for H2O substitution, but for SCN¯ reaction is much more rapid and proceeds entirely by the "direct" route, probably because of the greater nucleophilic strength of SCN¯ V.S. H2O.
Kamkar, A., & Day, J. (1987). Kinetics and Mechanism of the Substitution of Ligand (Urea) of [Ti(ur)6]3+ by H2O and SCN¯ in Ethanol Solution. Iranian Journal of Chemistry and Chemical Engineering, 6(1), 31-37. doi: 10.30492/ijcce.1987.12271
MLA
A. Kamkar; J.P. Day. "Kinetics and Mechanism of the Substitution of Ligand (Urea) of [Ti(ur)6]3+ by H2O and SCN¯ in Ethanol Solution". Iranian Journal of Chemistry and Chemical Engineering, 6, 1, 1987, 31-37. doi: 10.30492/ijcce.1987.12271
HARVARD
Kamkar, A., Day, J. (1987). 'Kinetics and Mechanism of the Substitution of Ligand (Urea) of [Ti(ur)6]3+ by H2O and SCN¯ in Ethanol Solution', Iranian Journal of Chemistry and Chemical Engineering, 6(1), pp. 31-37. doi: 10.30492/ijcce.1987.12271
VANCOUVER
Kamkar, A., Day, J. Kinetics and Mechanism of the Substitution of Ligand (Urea) of [Ti(ur)6]3+ by H2O and SCN¯ in Ethanol Solution. Iranian Journal of Chemistry and Chemical Engineering, 1987; 6(1): 31-37. doi: 10.30492/ijcce.1987.12271