Abstract
Enthalpies of dilution of ternary aqueous solutions containing an oligomer of glycine (glycyl-glycine and glycyl-glycyl-glycine) and one of the pentoses: L-arabinose, D-lyxose, D-ribose, D-xylose, were experimentally determined. The cross coefficients of the virial expansion of the excess enthalpies were evaluated and compared with those relative to the solutions containing the same pentoses and other structure breaking solutes (glycine, urea, thiourea, biuret). The trend of these coefficients seems to depend very little on the particular pentose, with the exception of a pronounced minimum for D-ribose. Also, the cross coefficients for each of the four pentoses studied do not seem to depend on the nature of the oligomers of glycine. The results were interpreted in terms of a prevailing release of water from the hydration cosphere of the sugars. These last substances show, once more, a behavior in water more complex than that commonly thought.
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J. J. Kozak, W. S. Knight, and W. Kauzmann,J. Chem. Phys. 48, 667 (1968).
G. M. Blackburn, T. H. Lilley, and E. Walmslay,J. Chem. Soc. Faraday Trans. I 76, 915 (1980).
G. Barone, P. Cacace, G. Castronuovo, and V. Elia,J. Chem. Soc. Faraday Trans. I 77, 1569 (1981).
G. M. Blackburn, T. H. Lilley, and E. Walmslay,J. Chem. Soc. Faraday Trans. I 78, 1641 (1982).
G. Olofsson, K. Nelander, J. M. Blackburn, H. E. Kent, and T. H. Lilley,Thermochim. Acta 78, 303 (1984).
V. Abate, G. Barone, G. Castronuovo, V. Elia, and V. Savino,J. Chem. Soc. Faraday Trans. I 80, 759 (1984).
G. Barone, G. Castronuovo, V. Elia, Kh. Stassinopoulou, and G. Della Gatta,J. Chem. Soc. Faraday Trans. I 80, 3095 (1984).
G. Barone, G. Castronuovo, P. Del Vecchio, V. Elia, and G. Santorelli,XVI Journ'ees de Calorimetrie et d'Analyse Thermique XVI, 203 (1985).
G. Barone, G. Castronuovo, V. Elia, and M. T. Tosto,J. Solution Chem. 15, 199 (1986).
G. Barone, G. Castronuovo, P. Del Vecchio, V. Elia, and M. T. Tosto,J. Solution Chem. 17, 925 (1988).
G. Barone, G. Castronuovo, P. Del Vecchio, and V. Elia,J. Thermal Anal. 34, 479 (1988).
G. Barone, G. Castronuovo, V. Elia, and A. Menna,J. Solution Chem. 8, 157 (1979).
W. G. McMillan, Jr. and J. E. Mayer,J. Chem. Phys. 13, 276 (1945).
H. L. Friedman and C. V. Krishnan,J. Solution Chem. 2, 119 (1973).
F. Franks, M. D. Pedley, and D. S. Reid,J. Chem. Soc. Faraday Trans. I 72, 359 (1976).
G. Barone, G. Castronuovo, P. Del Vecchio, and V. Elia,J. Thermal Anal. 34, 431 (1988).
G. Barone, G. Castronuovo, and V. Elia,Adv. Mol. Relaxation Interact. Processes (J. Molecular Liquids) 23, 273 (1982).
G. Borghesani, M. Remelli, and F. Pulidori,Thermochim. Acta 137, 165 (1988).
A. Cesàro,Thermodynamic Data for Biochemistry and Biotechnology, H. J. Hinz, ed., (Springer Verlag, Berlin, 1986), Chap. 6.
F. Franks,Pure and Appl. Chem. 59, 1189 (1987).
G. Barone,Thermochim. Acta. in press.
G. Barone, G. Castronuovo, P. Cacace and V. Elia,Carbohydr. Res. 91, 101 (1981).
G. Barone, G. Castronuovo, D. Doucas, V. Elia, and C. A. Mattia,J. Phys. Chem. 87, 1931 (1983).
G. Barone, P. Cacace, G. Castronuovo, V. Elia, and U. Lepore,Carbohydr. Res. 115, 15 (1983).
G. Barone, P. Cacace, G. Castronuovo, and V. Elia,J. Solution Chem. 13, 625 (1984).
S. H. Gaffney, E. Haslam, T. H. Lilley, and T. R. Ward,J. Chem. Soc. Faraday Trans. I 84, 2545 (1988).
G. Barone, G. Castronuovo, V. Elia, and V. Savino,J. Solution Chem. 13, 209 (1984).
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Barone, G., Castronuovo, G., Del Vecchio, P. et al. Interactions between small molecules of biological interest. Excess enthalpies of ternary solutions of oligomers of glycine and isomeric pentoses in water at 25°C. J Solution Chem 19, 41–50 (1990). https://doi.org/10.1007/BF00650643
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DOI: https://doi.org/10.1007/BF00650643