TRANSFER ENTROPIES AND STRUCTUREDNESS OF SOLVENTS

Standard transfer entropies, DELTAS-degrees(t)(i), of some ionic and n on-ionic solutes from water to aqueous mixtures of some ionic and non- ionic cosolvents, as obtained from emf or solubility measurements at d ifferent temperatures,have been analyzed as structural probes in the l ight of a semiquantitative theory. It transpires that structuring and destructuring ability of a cosolvent depends upon the ratio of hydroph obic to hydrophilic propensities of the cosolvents. Increase in the hy drophobic groups in the cosolvent increases the promotion of 3D struct ure of water while increase in the hydrophilcity of H-bonding sites of organic cosolvents or hydration of ions of ionic cosolvents decreases the same.