Journal ArticleDOI
Solute‐Solute Interactions in Aqueous Solutions
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In this article, the authors interpreted solvent-solute interactions in aqueous solutions of nonelectrolytes using both lattice and distribution function theories of the dissolved state.Abstract:
Solute‐solute interactions in aqueous solutions of nonelectrolytes are interpreted using both lattice and distribution function theories of the dissolved state. Experimental activity data of high precision can be obtained from the literature for aqueous solutions of many nonelectrolytes. If the logarithm of the solvent activity coefficient (γ1) is expressed as a power series in the mole fraction of the solute (x2), lnγ1 = Bx22 + Cx23 + ···, then the coefficients B and C can be determined analytically from the experimental measurements. Values of B were obtained for 52 aqueous mixtures; values of C were obtained for 39 of these mixtures. The solutes considered include aliphatic alcohols, amines, amides, ketones, fatty acids, amino acids, and sugars. In some cases, experimental data were available from which the temperature dependence of the quantities B and C could also be determined. The effect of solute size on the coefficients B and C was investigated using the lattice theories of Flory, Huggins, and Gu...read more
Citations
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Journal ArticleDOI
Conjecture on the Design of Helical Proteins.
John J. Kozak,Harry B. Gray +1 more
TL;DR: An important take home for the de novo protein synthesis community is offered: in order to increase the probability of obtaining good quality crystals, nearest-neighbor repulsive interactions between adjacent residues (or sequences of residues) in the polypeptide chain must be propagated correctly.
Journal ArticleDOI
Modulation of hydration characteristics of carbohydrates in aqueous medium of γ-amino butyric acid via volumetric, rheological and time-domain longitudinal NMR relaxation studies
TL;DR: In this article, the volumetric and viscometric interaction coefficients were calculated from the McMillan-Mayer theory of solutions, and the corresponding volumes of transfer, ΔtrV2° and change in viscosity B-coefficient, ΔB for carbohydrates from water to aqueous solutions of γ-ABA.
Journal ArticleDOI
Water-mediated interactions between benzene rings - Calorimetric studies of aromatic model compounds in aqueous solutions at 298 K
TL;DR: Pairwise enthalpic interaction coefficients of the virial expansion of the excess enthalpies were determined at 298 K by measuring the enthpies of dilution in aqueous solution of binary aqous solutions containing 4-hydroxyphenylacetic acid, 2-phenylethanol, 3-phenylpropanol, three-phenylonpropionic acid, l -tyrosine and l -phenylalanine as mentioned in this paper.
Journal ArticleDOI
Studies of intrinsic volumes of ethylene glycol and polyethylene glycol–300 molecules in aqueous solutions at 298.15 K: Application of Tammann–Tait–Gibson (TTG) equation of state
TL;DR: In this article , aqueous solutions of polyethylene glycols (PEG's) with the molar mass 200, 300, 400 and 600 D at (288.15, 293.15 and 304.15) K and at ambient pressure of 0.1 MPa in dilute solute concentration region (0.0119-0.4941 mol⋅kg−1).
Journal ArticleDOI
Binding and Stability Properties of PEG2000 to Globular Proteins: the Case of Lysozyme
TL;DR: In this paper , the enthalpy pair interaction coefficient and cross-interaction coefficient for the system PEG2000-lysozyme were evaluated using calorimetry and spectroscopy.
References
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Book
Molecular theory of gases and liquids
TL;DR: Molecular theory of gases and liquids as mentioned in this paper, molecular theory of gas and liquids, Molecular theory of liquid and gas, molecular theories of gases, and liquid theory of liquids, مرکز
Book ChapterDOI
Some factors in the interpretation of protein denaturation.
TL;DR: The chapter reviews that the denaturation is a process in which the spatial arrangement of the polypeptide chains within the molecule is changed from that typical of the native protein to a more disordered arrangement.
Journal ArticleDOI
Thermodynamics of High Polymer Solutions
TL;DR: In this paper, a statistical treatment of high polymer solutions has been carried out on the basis of an idealized model, originally proposed by Meyer, which is analogous to the one ordinarily assumed in the derivation of the ''ideal'' solution laws for molecules of equal size.
Journal ArticleDOI
Free Volume and Entropy in Condensed Systems III. Entropy in Binary Liquid Mixtures; Partial Molal Entropy in Dilute Solutions; Structure and Thermodynamics in Aqueous Electrolytes
Henry S. Frank,Marjorie W. Evans +1 more
TL;DR: The first and second papers in this series, which make it possible to interpret entropy data in terms of a physical picture, are applied to binary solutions, and equations are derived relating energy and volume changes when a solution is formed to the entropy change for the process as discussed by the authors.
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