Aqueous solutions containing amino acids and peptides. Part 24.—Free energetic and enthalpic coefficients for the interactions of some prolyl and sarcosyl terminally substituted compounds at 25 °C

Abstract

Enthalpies of dilution and osmotic coefficients for some systems containing some terminally substituted compounds of the imino acids proline and sarcosine, in water at 25 °C, have been obtained. The results have been analysed to give the enthalpic and free energetic virial coefficients for homotactic and heterotactic interactions. The Savage–Wood additivity of groups (SWAG) approach has been used, and this does have some utility. Some comments on the basis of the SWAG idea are presented.