Effects of ion association on rates of substitution in trans-[Ir(en)2Cl2]+ in mixed aqueous solvents
Abstract
The rate of ligand substitution reaction in trans-[lr(en)2Cl2]+ by Cl–, Br–, and NO2– has been investigated in water, water–dioxan, and water–ethanol (up to 60% v/v dioxan or ethanol). The effects of variation of ligand, ion concentration, solvent, and temperature are discussed. The results show ion-pair formation in all of the cases studied.