Thermochemical Study of Acid—Base Reactions in a Glycyl-Tyrosine Aqueous Solution
- Authors: Lytkin A.I.1, Chernikov V.V.1, Krutova O.N.1, Damrina K.V.1, Skvortsov I.A.1
-
Affiliations:
- Ivanovo State University of Chemistry and Technology
- Issue: Vol 90, No 4 (2016)
- Pages: 735-738
- Section: Chemical Thermodynamics and Thermochemistry
- URL: https://journals.rcsi.science/0036-0244/article/view/167992
- DOI: https://doi.org/10.1134/S003602441604018X
- ID: 167992
Cite item
Abstract
Thermal effects of the interaction between a glycyl-tyrosine solution and solutions of HNO3 and KOH in different pH ranges at a temperature of 298.15 K and ionic strengths of 0.25, 0.5, and 0.75 (KNO3) are measured via calorimetry. Thermal effects of the stepwise dissociation of the dipeptide are determined. Standard thermodynamic characteristics ΔrH°, ΔrG°, and ΔrS° of acid—base reactions in aqueous solutions of glycyl-tyrosine are calculated. The relationship between the thermodynamic characteristics of dipeptide dissociation and the structure of this compound is examined.
Keywords
About the authors
A. I. Lytkin
Ivanovo State University of Chemistry and Technology
Author for correspondence.
Email: kdvkonkpd@dsn.ru
Russian Federation, Ivanovo, 153000
V. V. Chernikov
Ivanovo State University of Chemistry and Technology
Email: kdvkonkpd@dsn.ru
Russian Federation, Ivanovo, 153000
O. N. Krutova
Ivanovo State University of Chemistry and Technology
Email: kdvkonkpd@dsn.ru
Russian Federation, Ivanovo, 153000
K. V. Damrina
Ivanovo State University of Chemistry and Technology
Email: kdvkonkpd@dsn.ru
Russian Federation, Ivanovo, 153000
I. A. Skvortsov
Ivanovo State University of Chemistry and Technology
Email: kdvkonkpd@dsn.ru
Russian Federation, Ivanovo, 153000
Supplementary files
