Physicochemical Behavior of Some Amino Acids/Glycylglycine in Aqueous D-Galactose Solutions at Different Temperatures

International Journal of Thermophysics - Tập 31 - Trang 572-584 - 2010
Anwar Ali1, Rajan Patel2, Shahjahan1, Nizamul Haque Ansari1
1Department of Chemistry, Jamia Millia Islamia (Central University), New Delhi, India
2Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (Central University), New Delhi, India

Tóm tắt

The apparent molar volumes $${(\overline{V_2})}$$ for glycine (Gly), l-alanine (Ala), phenylalanine (Phe), and glycylglycine (Gly-Gly) in 0.10 m aqueous d-galactose solutions have been determined from density measurements at (298.15, 303.15, 308.15, and 313.15) K. The data for $${(\overline{V_2})}$$ were utilized to estimate the partial molar volume at infinite dilution $${(\overline{V_2^0})}$$ , and experimental slope $${(S_{\rm v}^\ast)}$$ . The transfer volume, $${(\overline{V_{2}^0}_{\rm (tr)})}$$ , and hydration number, (n H) were also evaluated. The viscosity data were used to evaluate A- and B-coefficients of the Jones–Dole equation, the free energy of activation of viscous flow per mole of the solvent $${\left(\Delta \mu_{1}^{0\ast} \right)}$$ and the solute $${\left(\Delta \mu _{2}^{0\ast} \right)}$$ . The molar refractivity (R D) was calculated from refractive index data. The results were discussed in terms of hydrophilic–ionic, hydrophilic–hydrophobic, and hydrophobic–hydrophobic interactions, and structure-making/-breaking ability of the solute (AAs/peptide) in aqueous d-galactose solutions.

Tài liệu tham khảo

Abate V., Barone G., Castronuovo G., Elin V., Savino V.: J. Chem. Soc. Faraday Trans. I 80, 759 (1984) Franks F., Tait M.J., Suggett A., Ablett S., Quickenden P.A.: J. Solution Chem. 1, 131 (1972) Franks F., Reid D.S., Suggett A.: J. Solution Chem. 2, 99 (1973) Franks F.: Water, p. 135. The Royal Society of Chemistry, London (1983) Back J.F., Oakenfull D., Smith M.B.: Biochemistry 18, 5191 (1979) Uedaira H.: Bull. Chem. Soc. Jpn. 53, 2451 (1980) Li S., Sang W., Lin R.: J. Chem. Thermodyn. 34, 1761 (2002) Newcomer M.E., Lewis B.A., Quiocho F.A.: J. Biol. Chem. 254, 13218 (1981) Quiocho F.A., Vyas N.K.: Nature 310, 381 (1984) Bock K.: Pure Appl. Chem. 55, 605 (1983) Thogersen H., Lemieux R.U., Bock K., Meyer B.: Can. J. Chem. 60, 44 (1982) Karlsson K.A.: Pure. Appl. Chem. 59, 1477 (1987) Osawa T., Tsuji T.: Annu. Rev. Biochem. 56, 21 (1987) Parfenyuk E.V., Davydova O.I., Levedeva N.S.: J. Solution Chem. 33, 1 (2004) Zhao C., Ma P., Li J.: J. Chem. Thermodyn. 37, 37 (2005) Ali A., Hyder S., Sabir S., Chand D., Nain A.K.: J. Chem. Thermodyn. 38, 136 (2006) Ali A., Nain A.K.: Bull. Chem. Soc. Jpn. 75, 681 (2002) Wang J., Yan Z., Zhuo K., Liu D.: Z. Phys. Chem. 214, 333 (2000) Banipal T.S., Kapoor P.: J. Indian Chem. Soc. 76, 431 (1999) Reading J.F., Watson I.D., Hedwig G.R.: J. Chem. Thermodyn. 22, 159 (1990) Mishra A.K., Ahluwalia J.C.: J. Phys. Chem. 88, 86 (1984) Franks F., Quickenden M.A., Reid D.S., Watson B.: Trans. Faraday Soc. Trans. 1 66, 582 (1970) Teresawa S., Hsuki H., Arakawa S.: J. Phys. Chem. 79, 2345 (1975) Bondi A.: J. Phys. Chem. 68, 441 (1964) Shahidi F., Farrell P.G., Edwards J.T.: J. Solution Chem. 5, 807 (1976) Bhat R., Ahluwalia J.C.: J. Phys. Chem. 89, 1099 (1985) Millero F.J., Surdo A.L., Shin C.: J. Phys. Chem. 82, 784 (1978) Berlin E., Pallansch M.J.: J. Phys. Chem. 72, 1887 (1968) Millero F.J., Lepple G.K., Haff E.V.: J. Phys. Chem. 78, 1636 (1974) Jones G., Dole M.: J. Am. Chem. Soc. 51, 2950 (1929) Feakins D., Freemantle D.J., Lawrence K.G.: J. Chem. Soc. Faraday Trans. I 70, 795 (1974) Stokes R.H., Milles R.: International Encyclopedia of Physical Chemistry and Chemical Physics . Pergamon, New York (1965) Motin M.A.: J. Chem. Eng. Data 49, 94 (2004) Feakins D., Canning F.M., Waghorne W.E., Lawrence K.G.: J. Chem. Soc. Faraday Trans. 89, 3381 (1993) Glasstone S., Laidlar K.J., Eyring H.: The Theory of Rate Processes, p. 477. McGraw Hill, New York (1941) Pal A., Kumar S.: J. Mol. Liq. 109, 23 (2004) Marcus Y.: Introduction to Liquid State Chemistry, p. 16. Wiley, New York (1977)