Tytuł artykułu
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Abstrakty
The complex formation of Hg2+ ion with five recently synthesized benzo-substituted macrocyclic diamides in binary nitromethane + dimethylformamide mixtures was studied by differential pulse polarography at 25_C. The stoichiometry and stability of the complexes were determined by monitoring the shift in the Hg2+ differential pulse peak potential against the macrocycles concentration. In all cases studied, it was 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 cavity size, structural flexibility and nature of the substituted on the macrocyclic diamide ring.
Słowa kluczowe
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Czasopismo
Rocznik
Tom
Strony
1665--1671
Opis fizyczny
Bibliogr. 26 poz., rys.
Twórcy
autor
- Department of Chemistry, Razi University, Kermanshah, Iran
autor
- Department of Chemistry, Shahid Beheshti University, Tehran, Iran
autor
- Department of Chemistry, Shiraz University, Shiraz, Iran
autor
- Department of Chemistry, Sistan-Baloochestan University, Zahedan, Iran
autor
- Department of Chemistry, Tehran University, Tehran P.O. Box 14155-6455, Iran
Bibliografia
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- 4. Izatt R.M., Bradshaw I.S., Pawlak K.., Bruening R.L. and Tarbet B.J., Chem. Rev., 92,1261 (1992).
- 5. An H.Y., Bradshaw J.S. and Izatt R.M., Chem. Rev., 92,543 (1992).
- 6. Gibson H.W. and Nagvekar D.S., Can. J. Chem., 75, 1375 (1997).
- 7. Sharghi H. and Eshghi H., Tetrahedron, 51, 913 (1995).
- 8. Ganjali M.R., Eshghi H., Sharghi H. and Shamsipur M., J. Electroanal. Chem., 405, 177 (1996).
- 9. Paredes R.S., ValeraN.S. and Lindoy L.F., Aust J. Chem., 39, 1071 (1986).
- 10, Adam K.R, Leong A.J. and Lindoy L.R, J. Chem. Soc. Dalton Trans., 1733 (1988).
- 11. Shamsipur M., Rouhani S., Sharghi H., Ganjali M.R. and Eshghi H., Anal. Chem., 71, 4938 (1999).
- 12. Shamsipur M., Rouhani S., Ganjali M.R., Shaighi H. and Eshghi H., Sens. Actuators B., 59,30 (1999).
- 13. Shamsipur M., Rouhani S., Ganjali M.R., Eshghi H. and Sharghi H., Microchem. J., 63, 202 (1999).
- 14. Crow D.R., Polarography of Metal Complexes. Academic Press, NY, 1969.
- 15. Kolthoff I.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. Wrona P.K. and Gal us Z., Encyclopedia of Electrochemistry of the Elements, Vol. IX, A.J. Bard, ed., Dekker, NY, 1982.
- 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. Inclus. Phenom., 28,315 (1997),
- 26. Shannon R.D., Acta Cryst., 32A, 751 (1976).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ1-0021-0027