THERMODYNAMIC PROPERTIES OF PEPTIDE SOLUTIONS .9. PARTIAL MOLAR ISENTROPIC PRESSURE COEFFICIENTS IN AQUEOUS-SOLUTIONS OF SEQUENCE ISOMERIC TRIPEPTIDES WITH A SINGLE-CH3 SIDE-CHAIN

被引：76

作者：

HEDWIG, GR ^{[1
]}

HOILAND, H ^{[1
]}

机构：

[1] UNIV BERGEN,DEPT CHEM,N-5007 BERGEN,NORWAY

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 1993年 / 25卷 / 03期

关键词：

D O I：

10.1006/jcht.1993.1035

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The partial molar isentropic pressure coefficients at infinite dilution k∞S, 2= -(∂V∞2/∂p)Swhere V∞2is the partial molar volume at infinite dilution have been determined for the sequence isomeric tripeptides ld -alanylglycylglycine, glycyl-d-alanylglycine, and glycylglycyl-ld-alanine in aqueous solution at T = 298.15 K. The variation in the k∞S, 2values for the peptides has been rationalized in terms of likely solute-solvent interactions. For glycyl-d-alanylglycine the methyl side-chain disrupts the hydrogen-bonding interactions of the adjacent peptide functional groups. © 1993 Academic Press Ltd.

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页码：349 / 354

页数：6

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