Thermodynamics of 222 cryptates and the selective transfer of ions in the water–methanol system

Abstract

Free energies of transfer from water to methanol have been obtained for 222 cryptand and 222 cryptates, and used to calculate partition coefficients for the transfer of cations from the uncomplexed form in water to the cryptated form in methanol; the 222 cryptand alters the cation transfer selectivity by factors of up to 10⁷ by comparison with transfer of uncomplexed cation in water to uncomplexed cation in methanol.