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

被引：0

作者：

V. G. Badelin

V. I. Smirnov

机构：

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

来源：

Russian Journal of Physical Chemistry A | 2011年 / 85卷

关键词：

peptides; enthalpies of solution and transfer; water-organic mixtures;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Solution enthalpies of DL-α-alanyl-DL-α-asparagine (AlaAsn) in water-formamide, water-N-methylformamide, water-N,N-dimethylformamide, and water-N,N-dimethylacetamide mixtures were measured in the range of amide mole fractions x2 = 0–0.3. The standard enthalpies of solution (ΔsolH°) and transfer (ΔtrH°) of AlaAsn from water to the binary solvent and enthalpy coefficients of pair-wise interactions (hxy) of AlaAsn with amide molecules were calculated. The influence of the composition of the water-organic mixture on the enthalpy characteristics of AlaAsn is discussed. It is shown that the enthalpy characteristics of solution and transfer of AlaAsn are related to the structure of amides.

引用

共 23 条

[21] Enthalpies of solution in ethanol-water mixtures and acetone at 298.15 K and enthalpies of fusion of L(-)- and DL-chloramphenicols, D(+)- and DL-camphors, and (L-)- and DL-menthols
Abrosimov, VK
Smirnov, VI
Kuznetsov, VA
Okhrimenko, TM
Efremova, EP
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY, 2003, 77 (07): : 1191 - 1193
[22] The dependence of the enthalpy of solution of L-methionine on the composition of water-alcohol binary solvents at 298.15 K
V. G. Badelin
V. I. Smirnov
Russian Journal of Physical Chemistry A, 2010, 84 : 1163 - 1168
[23] The dependence of the enthalpy of solution of L-methionine on the composition of water-alcohol binary solvents at 298.15 K
Badelin, V. G.
Smirnov, V. I.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2010, 84 (07) : 1163 - 1168

← 1 2 3 →