Abstract
Partial molar volumes \( \bar V_U^0 \) of amino acids in an aqueous urea solution are studied. For a saturated urea solution \( \bar V_U^0 \) equals the molar volume of the amino acid, therefore, in the saturated solution, the amino acid dissolves without changing the system volume. Hydrophobic effects are manifested in the volumetric characteristics only in dilute (<1 mol/kg) urea solutions. Within a three-layer hydration model, the numbers of amino acid hydration are found. By the example of alanine and leucine, it is shown that their decrease with increasing urea concentration is determined by a zwitterionic moiety and does not depend on the size of the hydrocarbon radical of the amino acid.
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References
V. P. Korolev, J. Struct. Chem., 49, No. 4, 660–667 (2008).
V. P. Korolev, J. Struct. Chem., 49, No. 4., 668–678 (2008).
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, J. Struct. Chem., 48, No. 4, 673–679 (2007).
V. P. Korolev, D. V. Batov, and A. V. Kustov, Biofizika, 55, No. 2, 207–212 (2010).
T. Ogawa, M. Yasuda, and K. Mizutani, Bull. Chem. Soc. Jpn., 57, 662–666 (1984).
A. K. Mishra, K. P. Prasad, and J. C. Ahluwalia, Biopolimers, 22, 2397–2409 (1983).
C. Jolicoeur, B. Riedl, D. Desrochers, et al., J. Sol. Chem., 15, 109–128 (1986).
A. W. Hakin, C. L. Beswick, and M. M. Duke, J. Chem. Soc. Faraday Trans., 92, 207–213 (1996).
W. A. Hargraves and G. C. Kresheck, J. Phys. Chem., 73, 3249–3254 (1969).
O. Enea and C. Jolicoeur, J. Phys. Chem., 86, 3870–3881 (1982).
A. W. Hakin, L. L. Groft, J. L. Marty, and M. L. Rushfeldt, Can. J. Chem., 75, 456–464 (1997).
N. Desrosiers, G. Perron, J. G. Mathieson, et al., J. Solut. Chem., 3, 789–806 (1974).
G. Perron, N. Desrosiers, and J. E. Desnoyers, Can. J. Chem., 54, 2163–2183 (1976).
B. S. Lark, and K. Bala, Indian J. Chem., 22A, 192–194 (1983).
P. K. Das Gupta and S. P. Moulik, J. Phys. Chem., 91, 5826–5832 (1987).
I. S. Grigor’ev and E. Z. Meilikhov (eds.), in: Physical Values: Handbook [in Russian], Energoatomizdat, Moscow (1991).
E. Berlin and M. J. Pallansch, J. Phys. Chem., 72, 1887–1889 (1968).
E. J. Cohn, T. L. McMeekin, J. T. Edsall, and J. H. Weare, J. Am. Chem. Soc., 56, 2270–2282 (1934).
Gy. Jakli and W. A. Van Hook, J. Phys.Chem., 85, 3480–3493 (1981).
G. L. Perlovich, L. K. Hansen, and A. Bauer-Brandl, J. Therm. Anal. Calorim., 66, 699–715 (2001).
B. Palecz, J. Am. Chem Soc., 127, 17768–17771 (2005).
Y. Pointud and J. Juillard, J. Chem. Soc. Faraday Trans. I, 73, 1048–1053 (1977).
M. Abu-Hamdiyyah and A. Shehabuddin, J. Chem. Eng. Data, 27, 74–76 (1982).
F. J. Millero, A. Lo Surdo, and C. Shin, J. Phys. Chem., 82, 784–792 (1978).
J. V. Leyendekkers, J. Phys. Chem., 90, 5449–5455 (1986).
J. G. Mathieson and B. E. Conway, J. Sol. Chem., 3, 781–788 (1974).
K. P. Mishchenko and G. M. Poltoratskii, Thermodynamics and the Structure of Aqueous and Non-Aqueous Electrolyte Solutions [in Russian], 20th ed., Khimiya, Leningrad (1976).
T. S. Sarma and J. C. Ahluwalia, J. Phys. Chem., 76, 1366–1369 (1972).
V. P. Korolev, J. Struct. Chem., 51, No. 3, 491–499 (2010).
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Original Russian Text Copyright © 2011 by V. P. Korolev
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Translated from Zhurnal Strukturnoi Khimii, Vol. 52, No. 1, pp. 101–109, January–February, 2011.
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Korolev, V.P. Volume properties of a ternary system: Water-urea-amino acid. Dilute and concentrated solutions. J Struct Chem 52, 97–105 (2011). https://doi.org/10.1134/S0022476611010136
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DOI: https://doi.org/10.1134/S0022476611010136