Studies on homogeneous interactions between zwitterions of severall-α-amino acids in water at a temperature of 298.15 K
| Autor: | Henryk Piekarski, Stanislaw Romanowski, Bartłomiej Pałecz |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
chemistry.chemical_classification
Quantum chemical Inorganic chemistry Condensed Matter Physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Amino acid Dilution chemistry Computational chemistry Homogeneous Materials Chemistry Molecule Dilution enthalpy Physical and Theoretical Chemistry Spectroscopy |
| Zdroj: | Journal of Molecular Liquids. 84:279-288 |
| ISSN: | 0167-7322 |
| DOI: | 10.1016/s0167-7322(99)00194-4 |
| Popis: | Enthalpies of solution and dilution of L-α-aminobutyric acid, L-α-isoleucine, L-α-phenylalanine, L-proline and L-α-methionine in water at a temperature of 298.15 K have been measured. The values of dilution enthalpy were used to determine enthalpic homogeneous interaction coefficients which characterize the interactions between zwitterions of the examined L-α-amino acids in water. The effect of side substituents in a molecule of L-α-amino acids on the direct homogeneous interactions in water and the effect of these substituents on the surrounding water molecules have been discussed. Quantum chemical semiempirical calculations of the structure of L-a-aminobutyric acid and several of its hydrates were carried out. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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