Differential Pulse Polarographic Study of Mercury Complexes with Some Substituted Pyrimidines in Binary Acetonitrile-Dimethylformamide Mixtures

• Autorzy: Maddah B. , Alizadeh K. , Shamsipur M. , Moghimi A. , Ganjali M.
• Języki publikacji: EN

Abstrakty

EN

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

EN

pyrimidines; polarography; mixed solvents; mercury; stability constants

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2006
• Tom: Vol. 80, nr 5
• Strony: 737--744
• Opis fizyczny: Bibliogr. 30 poz., rys.

Twórcy

autor

Maddah B.

autor

Alizadeh K.

autor

Shamsipur M.

autor

Moghimi A.

autor

Ganjali M.

• 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).