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...
