Thermodynamic Characteristics of Acid–Base Reactions in Aqueous Solutions of DL-α-Alanyl-DL-norleucine
- Authors: Lytkin A.I.1, Chernikov V.V.1, Krutova O.N.1, Badelin V.G.2, Barannikov V.P.2
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Affiliations:
- Ivanovo State University of Chemistry and Technology, Russian Academy of Sciences
- Institute of Solution Chemistry, Russian Academy of Sciences
- Issue: Vol 92, No 10 (2018)
- Pages: 1907-1910
- Section: Physical Chemistry of Solutions
- URL: https://journals.rcsi.science/0036-0244/article/view/170154
- DOI: https://doi.org/10.1134/S0036024418100187
- ID: 170154
Cite item
Abstract
The heat effects of the interaction between a solution of DL-α-alanyl-DL-norleucine and solutions of HNO3 at different pH values at 288.15 and 308.15 K and ionic strength values of 0.5, 1.0, and 1.5 (background electrolyte, KNO3) are measured via calorimetry. The heat effects of the stepwise dissociation of the dipeptide are determined. Standard thermodynamic characteristics (ΔrH°, ΔrG°, ΔrS°, and \(\Delta C_{p}^{^\circ }\)) of the reactions of acid–base interaction in aqueous solutions of DL-α-alanyl-DL-norleucine are calculated. The relation between the thermodynamic characteristics of the dissociation of a dipeptide with the structure of this compound is considered.
Keywords
About the authors
A. I. Lytkin
Ivanovo State University of Chemistry and Technology, Russian Academy of Sciences
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153000
V. V. Chernikov
Ivanovo State University of Chemistry and Technology, Russian Academy of Sciences
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153000
O. N. Krutova
Ivanovo State University of Chemistry and Technology, Russian Academy of Sciences
Author for correspondence.
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153000
V. G. Badelin
Institute of Solution Chemistry, Russian Academy of Sciences
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153045
V. P. Barannikov
Institute of Solution Chemistry, Russian Academy of Sciences
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153045
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