The enthalpy of solution of DL-α-alanyl-DL-α-valine depending on the composition of water-alcohol binary solvents at 298.15 K

被引：0

作者：

V. I. Smirnov

V. G. Badelin

机构：

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

来源：

Russian Journal of Physical Chemistry A, Focus on Chemistry | 2008年 / 82卷

关键词：

EtOH; Pair Interaction; Alcohol Concentration; Alcohol Molecule; Alcohol Mixture;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The integral enthalpies of solution of DL-α-alanyl-DL-α-valine in water-ethanol, water-n-propanol, and water-isopropanol mixtures at alcohol concentrations x2 = 0–0.4 mole fractions were measured calorimetrically. The enthalpies of solution of the peptide ΔsolH° and transfer from water to a mixed solvent ΔtrH° were calculated. The effect of the structure and properties of the peptide and mixture composition on the enthalpy characteristics of the peptide are discussed. The enthalpy coefficients of pair interactions hxy of DL-α-alanyl-DL-α-valine with alcohol molecules were calculated. It was found that they were positive and increased in the series ethanol, n-propanol, isopropanol. An analysis of the results allows the general features of changes in the thermodynamic parameters of solution of peptides of the DL-α-alanine series with different amino acid residues in water-alcohol mixtures to be established.

引用

页码：2069 / 2073

页数：4

共 49 条

[1] The Enthalpy of Solution of DL-α-Alanyl-DL-α-Valine Depending on the Composition of Water-Alcohol Binary Solvents at 298.15 K
Smirnov, V. I.
Badelin, V. G.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2008, 82 (12) : 2069 - 2073
[2] 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
[3] Dependence of the solution and transfer enthalpies of DL-α-alanyl-DL-α-asparagine on the composition of water-amide binary solvents at 298.15 K
V. G. Badelin
V. I. Smirnov
Russian Journal of Physical Chemistry A, 2011, 85
[4] Dependence of the solution and transfer enthalpies of DL-α-alanyl-DL-α-asparagine on the composition of water-amide binary solvents at 298.15 K
Badelin, V. G.
Smirnov, V. I.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2011, 85 (06) : 944 - 947
[5] 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
[6] 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
[7] 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
[8] The thermochemical characteristics of solution of DL-α-alanylglycine and DL-α-alanyl-DL-α-alanine in water-organic solvent mixtures at 298.15 K
Smirnov, V. I.
Mezhevoi, I. N.
Badelin, V. G.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2007, 81 (08) : 1245 - 1249
[9] The thermochemical characteristics of solution of DL-α-alanylglycine and DL-α-alanyl-DL-α-alanine in water-organic solvent mixtures at 298.15 K
V. I. Smirnov
I. N. Mezhevoi
V. G. Badelin
Russian Journal of Physical Chemistry A, 2007, 81 : 1245 - 1249
[10] The thermochemical characteristics of solution of DL-α-alanylglycine and DL-α-alanylalanine in water-alcohol mixtures at 298.15 K
Smirnov, V. I.
Mezhevoi, I. N.
Badelin, V. G.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2007, 81 (05) : 727 - 730

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