Transfer entropies and structuredness of solvents

Standard transfer entropies,ASot(i) , of some ionic and non-ionic solutes from water to aqueous mixtures of some ionic and non-ionic cosolvents, as obtained from emf or solubility measurements at different temperatures, have been analyzed as structural probes in the light of a semiquantitative theory. It transpires that structuring and destructuring ability of a cosolvent depends upon the ratio of hydrophobic to hydrophilic propensities of the cosol vents. Increase in the hydrophobic groups in the cosolvent increases the promotion of 3D structure of water while increase in the hydrophilcity of H-bonding sites of organic cosolvents or hydration of ions of ionic cosolvents decreases the same.