Enthalpies of L-threonine dissolution in some aqueous amides at 298.15 K

被引：12
|
作者：
Smirnov, Valeriy I. [1 ]
Badelin, Valentin G. [1 ]
机构：
[1] Russian Acad Sci, Inst Solut Chem, Lab Thermodynam Nonelectrolytes Solut & Biol Act, Ivanovo 153045, Russia
来源：
THERMOCHIMICA ACTA | 2010年 / 503卷
关键词：
Amino acids; Enthalpies of solution and transfer; Mixtures of water with amides; SOLUTE-SOLUTE INTERACTIONS; ORGANIC SOLVENT MIXTURES; DL-ALPHA-ALANINE; AMINO-ACIDS; WATER; 25-DEGREES-C; PEPTIDES; SYSTEM; UREA; N; N-DIMETHYLFORMAMIDE;
D O I：
10.1016/j.tca.2010.03.014
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The enthalpies of L-threonine dissolution in aqueous fornamide, N-methylformamide, N,N-dimethylformamide and N,N-dimethylacetamide were determined by calorimetry at 298.15K and amide mole fractions up to x(2)similar to 0.3. The standard enthalpies of solution Delta H-sol degrees and transfer Delta H-tr degrees from water to the mixed solvent as well as the enthalpy coefficients of L-threonine-amide pairwise interactions were calculated. The interrelation of the enthalpies of dissolution and transfer for L-threonine with structural features of each of aqueous amides was determined. (C) 2010 Elsevier B.V. All rights reserved.
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页码：97 / 99
页数：3
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