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2001 | 99 | 3-4 | 385-392
Article title

Hydrophobic-Like Solvation in Non-Aqueous Solutions: Positron Annihilation in and Compressibility of Tert-butanol and Tetramethylurea in Ethylene Glycol

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Abstracts
EN
The pioneer experimental results of positron annihilation experiments in non-aqueous solutions of tetramethylurea and tert-butanol were compared to those of ultrasonic velocity. For tert-butanol, the positron annihilation results exclude existence of hydrophobic-like interactions and formation of weak, labile crystalline-like solvates in solution. For tetramethylurea solute the changes of annihilation parameters with concentration are minor and only limited conclusions can be drawn on this system, while they are stronger for tert-butanol solute. However, all the above is consistent with an assumption that the more hydrophobic solute (tert-butanol) should affect the original glycol structure stronger than that interacting with glycol via hydrogen bondings only. On the other hand, the ultrasonic data for the systems tested, although very precise, hardly confirm formation of any specific structure. It is possible, however, that the solvates do not differ in their compressibility from the pure liquids, and/or are formed only in very small amounts. Thus, usefulness of the positron annihilation method in investigation of liquid structure was proven.
Keywords
EN
Contributors
author
  • Institute of Experimental Physics, University of Wrocław, Pl. Maxa Borna 9, 50-204 Wrocław, Poland
author
  • Institute of Experimental Physics, University of Wrocław, Pl. Maxa Borna 9, 50-204 Wrocław, Poland
author
  • Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
author
  • Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
References
  • 1. K. Jerie, A. Baranowski, B. Rozenfeld, S. Ernst, J. Gliński, Acta Phys. Pol. A, 64, 77, 1983
  • 2. K. Jerie, A. Baranowski, B. Rozenfeld, S. Ernst, B. Jeżowska-Trzebiatowska, J. Gliński, Acta Phys. Pol. A, 66, 3, 1984
  • 3. K. Jerie, A. Baranowski, B. Rozenfeld, S. Ernst, B. Jeżowska-Trzebiatowska, J. Gliński, Acta Phys. Pol. A, 66, 167, 1984
  • 4. K. Jerie, A. Baranowski, S. Ernst, J. Gliński, Acta Phys. Pol. A, 69, 81, 1986
  • 5. K. Jerie, A. Baranowski, S. Ernst, J. Gliński, Acta Phys. Pol. A, 69, 91, 1986
  • 6. K. Jerie, A. Baranowski, B. Rozenfeld, J. Gliński, S. Ernst, Acta Phys. Pol. A, 73, 667, 1988
  • 7. K. Jerie, A. Baranowski, B. Rozenfeld, B. Jeżowska-Trzebiatowska, J. Gliński, Acta Phys. Pol. A, 79, 507, 1991
  • 8. K. Jerie, A. Baranowski, B. Rozenfeld, B. Jeżowska-Trzebiatowska, J. Gliński, Acta Phys. Pol. A, 82, 471, 1992
  • 9. H.S. Frank, M.W. Evans, J. Phys. Chem., 13, 507, 1945
  • 10. F. Franks, Ann. N.Y. Acad. Sci., 125, 277, 1965
  • 11. A. Baranowski, K. Jerie, J. Gliński, K. Orzechowski, Acta Phys. Pol. A, 88, 59, 1995
  • 12. K. Jerie, A. Baranowski, J. Gliński, in: Proc. of the 31st Seminar on Positron Annihilation, Jarnołtówek (Poland), Sept. 27 - Oct. 1 1999, Eds. W. Świątkowski, K. Jerie, Opole University, Opole 2000, p. 103
  • 13. K. Jerie, A. Baranowski, J. Gliński, J. Przybylski, J. Radioanal, Nuclear Chem., 246, 343, 2000
  • 14. K. Jerie, A. Baranowski, J. Gliński, K. Orzechowski, Acta Phys. Pol. A, 85, 563, 1994
  • 15. Gy. Jákli, A. Baranowski, K. Jerie, J. Gliński, K. Orzechowski, Bull. Pol. Acad. Sci. -Chem., 42, 67, 1994
  • 16. Gy. Jákli, A. Baranowski, K. Jerie, J. Gliński, K. Orzechowski, Nukleonika, 42, 123, 1997 (tetrabutylammonium bromide + water); Gy. Jákli, K. Jerie, A. Baranowski, J. Gliński, Acta Phys. Polon. A, 93, 649, 1998 (tetramethylammonium chloride + water). Note, however, that for tetraalkylammonium salts the hydrophobic interactions compete with the electrostatic ones, making interpretation of both positron annihilation and ultrasonic results much more difficult than for non-electrolytes
  • 17. H. Endo, Bull. Chem. Soc. Jpn., 16, 1586, 1973
  • 18. S. Ernst, J. Gliński, Pol. J. Chem., 56, 339, 1982
  • 19. S. Ernst, J. Gliński, Mater. Sci., 3, 68, 1977
  • 20. M. von Stackelberg, H. Muller, Z. Elektrochem., 58, 25, 1954
  • 21. CRC Handbook of Chemistry and Physics, Ed. R.C. Weast, 56th ed., CRC Press, Cleveland (Ohio, USA) 1975
  • 22. S. Ernst, J. Gliński, B. Jeżowska-Trzebiatowska, Acta Phys. Polon. A, 64, 501, 1979
  • 23. L. Pauling, The Nature of the Chemical Bond, 3rd ed., Cornell University Press, Ithaca - New York 1960, p. 469
  • 24. H.S. Frank, A.S. Quist, J. Chem. Phys., 34, 604, 1961
  • 25. V.N. Yashkitshev, O.Ya. Samoilov, Zh. Strukt. Khim., 3, 211, 1962
  • 26. M.N. Buslayeva, O.Ya. Samoilov, Zh. Strukt. Khim., 4, 502, 1963
  • 27. I.A. Chaban, M.N. Rodnikova, J. Barthel, L.L. Chaikov, S.V. Krivokhiza, V.V. Zhackova, J. Mol. Liq., 80, 27, 1999
  • 28. B. Levay, A. Vertes, P. Hautojarvi, J. Phys. hem., 77, 2229, 1973
Document Type
Publication order reference
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bwmeta1.element.bwnjournal-article-appv99n312kz
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