Abstract
The thermal effects of acid-base reactions of phenylalanine and tryptophan in aqueous solutions (ionic strength 0.5, 1.0, and 1.5; supporting electrolyte KNO3) at 298.15 K were determined calorimetrically. The thermodynamic characteristics of stepwise dissociation of the amino acids in aqueous solution were calculated. The influence of the structure of the amino acids on the thermodynamic parameters of the protolytic equilibria was examined.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
IUPAC Stability Constants Database SCQUERY, IUPAC and Academic Software SCQUERY, Ver. 3.09, Pellit, L.D. and Powell, H.K.J., Compilers, the United Kingdom, 1997.
Chistensen, J.J., Izatt, K.M., Wrarhall, D.P., and Hansen, L.D., J. Chem. Soc. A, 1969, no. 8, p. 1212.
Williams, D.R., J. Chem. Soc. A, 1970, no. 9, p. 1550.
Rodante, F., Thermochim. Acta, 1989, vol. 149, p. 157.
Martell, A. and Smith, E., Critical Stability Constants, New York: Plenum, 1974, vol. 1.
Vasil'ev, V.P. and Shekhanova, L.D., Zh. Neorg. Khim., 1974, vol. 19, no.11, p. 2669.
Vasil'ev, V.P., Termodinamicheskie svoistva rastvorov elektrolitov (Thermodynamic Properties of Electrolyte Solutions), Moscow: Vysshaya Shkola, 1982.
Vasil'ev, V.P., Kochergina, L.A., Garavin, V.Yu., and Grudochkin, A.V., in Mezhvuzovskii sbornik nauchnykh trudov-“Teoreticheskie metody opisaniya svoistv rastvorov” (Intercollegiate Coll. of Scientific Works “Theoretical Methods for Describing Properties of Solutions”), Ivanovo, 1987, p. 87.
Vasil'ev, V.P., Kochergina, L.A., and Garavin, V.Yu., Zh. Obshch. Khim., 1992, vol. 62, no.1, p. 213.
Zelenin, O.Yu. and Kochergina, L.A., Zh. Fiz. Khim., 2004, vol. 78, no.3, p. 406.
Vasil'ev, V.P., Zelenin, O.Yu., and Kochergina, L.A., Russ. J. Phys. Chem., 2001, vol. 75,suppl. 1, p. s165.
Vasil'ev, V.P., Zh. Neorg. Khim., 1984, vol. 29, no.11, p. 2785.
Garavin, V.Yu., Cand. Sci. (Chem.) Dissertation, Ivanovo, 1985.
Vasil'ev, V.P. and Kochergina, L.A., Zh. Fiz. Khim., 1967, vol. 41, no.12, p. 2777.
Vasil'ev, V.P., Frolov, V.Yu., and Lytkin, A.I., Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1995, vol. 38, nos.4–5, p. 15.
Vasil'ev, V.P., Kozlovskii, E.V., and Ledenkov, S.F., Zh. Fiz. Khim., 1987, vol. 61, no.5, p. 1425.
Vasil'ev, V.P., Kochergina, L.A., and Garavin, V.Yu., Zh. Obshch. Khim., 1985, vol. 55, no.12, p. 2780.
Vasil'ev, V.P., Kochergina, L.A., Gorboletova, G.G., and Popova, O.N., Zh. Fiz. Khim., 1999, vol. 73, no.4, p. 677.
Korostelev, P.P., Prigotovlenie rastvorov dlya khimiko-analiticheskikh rabot (Preparation of Solutions for Chemical Analysis), Moscow: Akad. Nauk SSSR, 1962.
Karyakin, Yu.V. and Angelov, I.I., Chistye khimicheskie veshchestva (Pure Chemical Substances), Moscow: Khimiya, 1974.
Borodin, V.A., Vasil'ev, V.P., and Kozlovskii, E.V., in Matematicheskie zadachi khimicheskoi termodinamiki (Mathematical Problems of Chemical Thermodynamics), Novosibirsk: Nauka, 1985, p. 219.
Author information
Authors and Affiliations
Additional information
__________
Translated from Zhurnal Obshchei Khimii, Vol. 75, No. 9, 2005, pp. 1531–1537.
Original Russian Text Copyright © 2005 by Zelenin.
Rights and permissions
About this article
Cite this article
Zelenin, O.Y. Thermodynamic Characteristics of Acid-Base Reactions of Aromatic Derivatives of α-Aminopropionic Acid in Aqueous Solution. Russ J Gen Chem 75, 1458–1464 (2005). https://doi.org/10.1007/s11176-005-0446-0
Received:
Issue Date:
DOI: https://doi.org/10.1007/s11176-005-0446-0