Abstract
Hydration number of selected amino acids, their hydrochlorides and their oligopeptides with glycine were determined by the ultrasonic method. Assuming additivity of contributions of ionic and non-ionic groups to the total hydration of the studied substances, the hydration numbers of the free amino acids were calculated. The results obtained are interpreted on the basis of the pseudocrystalline model of water structure.References
[1] A. JUSZKIEWICZ, Ultrasonic studies on hydration of carboxylic acids, aminoacids and peptides in aqueous ethanolic solutions, Arch. of Acoust., 10, 151-160 (1985).
[2] T. YASUNAGA, Y. HIRATA, Y. KAWANO, M. MIURA, Ultrasonic studies of the hydration of various compounds in an ethanol-water mixed solvent. Hydration of inorganic compounds, Bull. Chem. Soc. Japan 37, 867-871 (1964).
[3] T. YASUNAGA, I. USUI, K. IWATA, M. MIURA, Ultrasonic studies of the hydration of various compounds in an ethanol-water mixed solvent. II. The hydration of organic compounds, Bull. Chem. Soc. Japan, 37, 1658-1660 (1964).
[4] A. JUSZKIEWICZ, Hydration numbers of electrolytes determined by the ultrasonic method, Pol. J. Chem., 58, 1115-1123 (1984).
[2] T. YASUNAGA, Y. HIRATA, Y. KAWANO, M. MIURA, Ultrasonic studies of the hydration of various compounds in an ethanol-water mixed solvent. Hydration of inorganic compounds, Bull. Chem. Soc. Japan 37, 867-871 (1964).
[3] T. YASUNAGA, I. USUI, K. IWATA, M. MIURA, Ultrasonic studies of the hydration of various compounds in an ethanol-water mixed solvent. II. The hydration of organic compounds, Bull. Chem. Soc. Japan, 37, 1658-1660 (1964).
[4] A. JUSZKIEWICZ, Hydration numbers of electrolytes determined by the ultrasonic method, Pol. J. Chem., 58, 1115-1123 (1984).
