Thermochemistry of the dissolution of DL-α-alanyl-DL-norleucine in aqueous solutions of amides at 298.15 K

被引：0

作者：

V. I. Smirnov

V. G. Badelin

机构：

[1] Russian Academy of Sciences,Krestov Institute of Solution Chemistry

来源：

Russian Journal of Physical Chemistry A | 2013年 / 87卷

关键词：

peptides; enthalpies of dissolution and transition; water-organic mixtures; enthalpy coefficients of pair interaction;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Enthalpies of the dissolution of DL-α-alanyl-DL-norleucine are determined by calorimetry in aqueous solutions of formamide (FA), N-methylformamide (MFA), N,N-dimethylformamide (DMF), and N,N-dimethylacetamide (DMA) at a concentration of amides of x2 = 0–0.4 molar parts and T = 298.15 K. Standard values of enthalpies of dissolution ΔsolHo and ΔtrHo of DL-α-alanyl-DL-norleucine transfer from water to binary solvent are calculated, along with the enthalpy coefficients of pair interactions hxy of DL-α-alanyl-DL-norleucine with amide molecules. The effect of the composition of water-organic mixtures and the structure of amides on the enthalpy characteristics of dissolution and transition of DL-α-alanyl-DL-norleucine is considered. Quantitative estimates of the contributions to energy from DL-α-alanyl-DL-norleucine-amides pair interactions determined by the polarity, polarizability, and electron acceptor and electron donor ability of organic cosolvents are given using the Kamlet-Taft correlation equation.

引用

页码：1793 / 1797

页数：4

共 22 条

[1] Thermochemistry of the dissolution of DL-α-alanyl-DL-norleucine in aqueous solutions of amides at 298.15 K
Smirnov, V. I.
Badelin, V. G.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2013, 87 (11) : 1793 - 1797
[2] Thermodynamic characteristics of acid-base equilibria of DL-α-alanyl-DL-norleucine in aqueous solutions at 298 K
A. I. Lytkin
V. V. Chernikov
O. N. Krutova
S. A. Bychkova
I. A. Skvortsov
Russian Journal of Physical Chemistry A, 2015, 89 : 1531 - 1534
[3] Thermodynamic Characteristics of Acid-Base Equilibria of DL-α-Alanyl-DL-Norleucine in Aqueous Solutions at 298 K
Lytkin, A. I.
Chernikov, V. V.
Krutova, O. N.
Bychkova, S. A.
Skvortsov, I. A.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2015, 89 (09) : 1531 - 1534
[4] Enthalpies of solution of DL-α-Alanyl-DL-α-Valine in aqueous solution of amides at 298.15 K
Smirnov, Valeriy I.
Badelin, Valentin G.
THERMOCHIMICA ACTA, 2009, 485 (1-2) : 72 - 75
[5] Thermochemistry of the Dissolution of Dipeptides Containing DL-α-Alanine in Aqueous Solutions of Sodium Dodecyl Sulfate at 298.15 K
V. I. Smirnov
V. G. Badelin
Russian Journal of Physical Chemistry A, 2018, 92 : 900 - 904
[6] Thermochemistry of the Dissolution of Dipeptides Containing DL-α-Alanine in Aqueous Solutions of Sodium Dodecyl Sulfate at 298.15 K
Smirnov, V. I.
Badelin, V. G.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2018, 92 (05) : 900 - 904
[7] Enthalpies of solution of DL-α-alanyl-DL-α-asparagine in aqueous alcohols at 298.15 K
Smirnov, Valeriy I.
Badelin, Valentin G.
THERMOCHIMICA ACTA, 2011, 512 (1-2) : 55 - 58
[8] Influence of the Composition of (H2O + SDS) Mixtures on the Interaction Energy of dl-α-Alanyl-dl-α-Valine and dl-α-Alanyl-dl-α-Norleucine with SDS Micelles at T=298.15 K
Smirnov, V. I.
Badelin, V. G.
Barannikov, V. P.
Kurbatova, M. S.
JOURNAL OF SOLUTION CHEMISTRY, 2019, 48 (8-9) : 1309 - 1317
[9] Influence of the Composition of (H2O + SDS) Mixtures on the Interaction Energy of dl-α-Alanyl-dl-α-Valine and dl-α-Alanyl-dl-α-Norleucine with SDS Micelles at T = 298.15 K
V. I. Smirnov
V. G. Badelin
V. P. Barannikov
M. S. Kurbatova
Journal of Solution Chemistry, 2019, 48 : 1309 - 1317
[10] Effect of the composition of a water-alcohol solvent on the thermodynamics of dissolution of DL-α-alanyl-β-alanine at 298.15 K
V. I. Smirnov
V. G. Badelin
Russian Journal of Physical Chemistry A, 2014, 88 : 2087 - 2090

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