Abstract
The enthalpies of dissolution of imino acid L-proline in aqueous solutions of methanol, 2-propanol, ethylene glycol, glycerin, and urea are measured by the calorimetric method at 313.15 K. Enthalpic parameters of the interaction of L-proline with nonaqueous components are calculated and compared with the data at 298.15 K. It is found that the sign of the heat capacity parameter of the pair and ternary interactions depends on whether the nonaqueous solvent component is a destroyer or stabilizer of the water structure. Partial molar heat capacities of proline in mixed solvents are obtained by the integral dissolution heat method. Temperature changes in the reduced enthalpy and entropy of the proline solution are determined at an increase in the temperature from 298 K to 313 K. It is shown that there is entropyenthalpy compensation at temperature changes in the characteristics during dissolution.
Similar content being viewed by others
References
Yu. M. Kessler and A. L. Zaitsev, Solvophobic Effects [in Russian], Khimiya, Leningrad (1989).
O. V. Kulikov and P. V. Lapshev, Thermodynamic Aspects of Molecular Recognition in the Solutions of Model Biological and Macrocyclic Compounds, Biologically Active Compounds in Solutions: Structure, Thermodynamics, Reactivity (“Problems of Solution Chemistry”) [in Russian], Ac. A. M. Kutepov (ed.), Nauka, Moscow (2001).
V. P. Korolev, J. Struct. Chem., 47, No. 4, 699–710 (2006).
J. Jarabak, E. Seeds, and P. Talalay, Biochemistry, 5, 1269–1279 (1966).
G. DiPaola and B. Belleau, Canad. J. Chem., 53, 3452–3461 (1975).
G. DiPaola and B. Belleau, Canad. J. Chem., 56, 1827–1831 (1978).
N. Alberola, J. Perez, J. Tatibouet, et al., J. Phys. Chem., 86, 2998–3002 (1982).
X. Cao, Y. Tian, Z. Wang, et al., J. Therm. Anal. Calorim., 102, 75–81 (2010).
J. F. Back, D. Oakenfull, M. B. Smith, et al., Biochemistry, 18, 5191–5196 (1979).
G. Barone, G. Castronuovo, C. Della Volpe, et al., J. Phys. Chem., 83, 2703–2706 (1979).
G. Barone, G. Castronuovo, V. Elia, and A. Meñña, J. Solut. Chem., 8, 157–163 (1979).
C. Cascella, G. Castronuovo, V. Elia, et al., J. Chem. Soc. Faraday Trans. I, 85, 3289–3299 (1989).
G. Castronuovo, V. Elia, M. Niccoli, et al., Thermochim. Acta, 389, 1–9 (2002).
A. S. Rudolf and J. H. Crowe, Biophys. J., 50, 423–430 (1986).
V. P. Korolev, O. A. Antonova, and N. L. Smirnova, Zh. Fiz. Khim., 84, 2250–2254 (2010).
V. P. Korolev, D. V. Batov, N. L. Smirnova, and A. V. Kustov, J. Struct. Chem., 48, No. 4, 666–672 (2007).
V. P. Korolev, O. A. Antonova, and N. L. Smirnova, Zh. Fiz. Khim., 84, 1827–1831 (2010).
V. P. Korolev, O. A. Antonova, and N. L. Smirnova, J. Therm. Anal. Calorim., 108, 1–7 (2012).
B. Palecz, H. Piekarski, and S. Romanowski, J. Mol. Liq., 84, 279–288 (2000).
W. G. McMillan and J. E. Mayer, J. Chem. Phys., 13, 276–305 (1945).
J. E. Desnoyers, G. Perron, L. Avédikian, et al., J. Solut. Chem., 5, 631–644 (1976).
A. W. Hakin, L. L. Groft, J. L. Marty, et al., Canad. J. Chem., 75, 456–464 (1997).
A. G. Cole, J. O. Hutchens, and J. W. Stout, J. Phys. Chem., 67, 1852–1855 (1963).
J. O. Hutchens, A. G. Cole, and J. W. Stout, J. Am. Chem. Soc., 82, 4813–4815 (1960).
A. K. Mishra and J. C. Ahluwalia, J. Chem. Soc. Faraday Trans. I, 77, 1469–1483 (1981).
I. M. Barclay and J. A. V. Butler, Trans. Faraday Soc., 34, 1445–1454 (1938).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © 2014 V. P. Korolev, O. A. Antonova, N. L. Smirnova.
__________
Translated from Zhurnal Strukturnoi Khimii, Vol. 55, No. 2, pp. 376–381, March–April, 2014.
Rights and permissions
About this article
Cite this article
Korolev, V.P., Antonova, O.A. & Smirnova, N.L. Thermodynamic characteristics, structure, and interactions of L-proline in aqueous solutions of alcohols and urea. J Struct Chem 55, 353–359 (2014). https://doi.org/10.1134/S0022476614020243
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0022476614020243