Gibbs Energy of the Transfer of Cryptand[2.2] from Water to an Water–Dimethyl Sulfoxide Solvent

The paper presents the values of the Gibbs energy of the transfer of cryptand[2.2] (1,10-diaza-18-crown-6 ether) from water into a mixed solvent of water and dimethyl sulfoxide with a variable content of the organic component. The Gibbs energy of transfer was determined by the method of interphase distribution of a substance between immiscible phases at a temperature of 298 K. It was established that with an increase in the dimethyl sulfoxide concentration in solution, the solvation of cryptand[2.2] is weakened. The results are compared with the literature data that characterize the transfer of other macrocyclic compounds from water to water–dimethyl sulfoxide mixtures.