Tytuł artykułu
Identyfikatory
Warianty tytułu
Języki publikacji
Abstrakty
The complex formation of Hg2+ ion with five synthesized substituted pyrimidines in binary acetonitrile-dimethylformamide (AN-DMF) mixtures was studied by differential pulse polarography at 25 graduate C. The stoichiometry and stability of the complexeswere determined by monitoring the shift in the Hg2+ differential pulse peak potential against the pyrimidines concentration. In all cases studied, itwas found that the stability of the resulting 1:1 complex decreases drastically by increasing the amount of dimethylformamide in the binary mixtures. The observed stability order in a given solvent mixture is discussed in terms of the solvating ability of the solvent, donor site number, and steric hindrance on the pyrimidines.
Słowa kluczowe
Wydawca
Czasopismo
Rocznik
Tom
Strony
737--744
Opis fizyczny
Bibliogr. 30 poz., rys.
Twórcy
autor
autor
autor
autor
autor
- Department of Chemistry, Imam Hossein University, Tehran, P.O. Box 16575-347, Iran
Bibliografia
- 1. Badran M.M. and Youssef K.M., Egypt J. Pharm. Sci., 30,444 (1989); Youssef K.M., Abou-Seir A.H.,Essawi H.Y.H. and Shouman S., ibid., 35, 383 (1994).
- 2. Heyrovsky M., Mader R, Vesela V. and Fedurco M., J. Electroanal. Chem., 369, 53 (1994).
- 3. Ganjali M.R., Rahimi M., Maddah B. and Moghimi A., Anal Sci., 20, 1427 (2004).
- 4. Karapally J.C., Hoek C.V. and Saure H.H., Analytical Methods for Pesticides and Plant Growth Regulators, vol. XI, Academic Press, London, 1980.
- 5. Connolly G.P. and Duley J.A., Trends Pharmacol. Sci., 20, 218 (1999).
- 6. Fornai F., Busceti C.L., Ferrucci M., Lazzeri G. and Ruggieri S., Funct. Neurology, 17, 93 (2002).
- 7. Saito K., Murakami S. and Muromatsu A., Polyhedron, 12, 1587 (1993).
- 8. Martell A.E. and Motekaikis R.J., Determination and Use of Stability Constants, VCH Publishers, New York, 1988.
- 9. Bard A.J. and Faulkner L.R., Electrochemical Methods. Fundamentals and Application, Wiley, New York, 1980.
- 10. Crow D.R., Polarography of Metal Complexes, Academic Press, London, 1969.
- 11. Vogel's Textbook of Practical Organie Chemistry, 4th Ed., Longman, London, 1032 (1978).
- 12 Ungavarsky C., Truchlik S., Michalik M. and Rupicik M., Czech. Pat. 202955.
- 13. Lacey R.N., J. Chem. Soc., 839 (1954).
- 14. Lowe P.R., Sanson C., Schwabe C.H. and Carl H., Crystal. Struct. Commun., C43(2), 530 (1989).
- 15. Kolthoffl.M. and Miller C.S., J. Am. Chem. Soc., 63, 1405 (1941).
- 16 Parry E.P. and Osteryoung R.A., Anal. Chem., 37, 1634 (1965).
- 17. Bard A.J. and Faulkner L.R., Electrochemical Methods Fundamentals and Applications, Wiley and Sons, NY, 1986.
- 18. Nyman C.J. and Parry E.P., Anal. Chem., 30, 1255 (1958).
- 19. Shamsipur M., Fakhari A.R., Eshghi H., Sharghi H. and Ganjali M.R., Polish J. Chem., 76,1665 (2002).
- 20. Hojo M., Hajiwara M., Nagai H. and Imai Y., J. Electroanal. Chem., 234, 251 (1987).
- 21. Gutmann V., Coordination Chemistry in Non-aqueous Solution, Springer Verlag, NY, 1960.
- 22. Hofmanova A., Koryta J., Brezina M. and Mittal L., Inorg. Chim. Acta, 28, 73 (1978).
- 23. Yee E.L., Tabib J. and Weaver M.J., J. Electroanal Chem., 96, 241 (1979).
- 24. Gutmann V., The Donor - Acceptor Concept of Molecular Interaction, Plenum, NY, 1978.
- 25. Shamsipur M. and Ghasemi J., J. Indus. Phenom., 28, 315 (1997).
- 26. Ganjali M.R., Eshghi H., Sharghi H. and Shamsipur M., J. Electroanal. Chem., 405, 177 (1996).
- 27. Izatt R.M., Terry R.E., Nelson D.P., Chan Y, Eatough J.S., Bradshaw J.S., Hansen L.D and Christensen J.J., J. Am. Chem. Soc., 98, 7626 (1976).
- 28. Cox B.G., Friman P., Gudlin D. and Schneider H., J. Phys. Chem., 86, 4986 (1982).
- 29. Stricks W. and Kolthoff I.M., J. Am. Chem. Soc., 74,4946 (1952).
- 30. Bullerwell R.A.F., J. Polarogr. Soc., 9, 7 (1963).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ1-0026-0007