ENERGETIC CHARACTERISTICS OF SOLVATION IN THE SOLUTIONS OF POLAR ORGANIC-COMPOUNDS

The present paper carries the analysis of various contributions into t he total energy of intermolecular interaction (IMI) DELTAU(S) in infin itely diluted solutions, that are formed by aliphatic (including alcoh ols) and aromatic polar compounds with polar and non-polar, associated and non-associated solvents at 298 K. The calculation within the fram es of the earlier suggested continuum method of IMI energy and of its separate constituents in the systems studied is carried out, and the c ases of their deviations from experimentally determined analogues are analyzed to resolve the above task. Compounds are distinguished for wh ich there is a strengthening or weakening of the energy of the hydroge n bond between the molecules of solute and solvent in solution, if com pared with the analogous value between the individual liquid molecules . Quantitative values of the energetic expenditure for the destruction of associative bonds in solvents upon formation of solutions are esti mated.