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Journal of the Mexican Chemical Society

Print version ISSN 1870-249X

J. Mex. Chem. Soc vol.52 n.3 Ciudad de México Jul./Sep. 2008

 

Article

 

Studies on Biologically Significant Copper (II) / Manganese (II) / Uranyl (II) – Isoleucine Binary Complexes

 

Brij Bhushan Tewari

 

Department of Chemistry, Faculty of Natural Sciences, University of Guyana, P. O. Box: 101110, Georgetown, Guyana. Tel: 592–222–6004, Fax: 592–222–3596. *Responsible author: brijtew@yahoo.com

 

Recibido el Febrero 18, 2008
Aceptado el Agosto 19, 2008

 

Abstract

The stability constants of Cu2+, Mn2+ and UO22+ complexes with isoleucine were determined by paper electrophoretic technique. Present method is based upon the migration of a spot of the metal ions on a paper strip at different pH's of background electrolyte. A graph of pH against mobility gives information about the binary complexes and permit to calculate their stability constants. The first and second stability constants of [Cu(II) – isoleucine], [Mn(II) – isoleucine] and [UO2(II) – isoleucine] complexes were found to be (8.41 ± 0.07; 6.43 ± 0.03), (3.87 ± 0.11; 2.61 ± 0.06) and (7.91 ± 0.13; 5.73 ± 0.04) for Cu(II), Mn(II) and UO2(II) complexes, respectively at ionic strength 0.1 Mol/L and a temperature of 35 0C

Keywords: Paper ionophoresis, overall mobility, copper(II), manganese(II) and uranyl(II), stability constants, isoleucine.

 

Resumen

Las constantes de estabilidad de complejos de Cu2+, Mn2+ and UO22+ con isoleucina fueron determinadas por la técnica de electroforesis en papel. El método se basa en la migración de la mancha de los iones metálicos en papel a diferentes pH en cierto electrolito. La gráfica del pH contra movilidad proporciona información sobre los compuestos binarios y permite el cálculo de las constantes de estabilidad. Las primeras y segundas constantes de estabilidad de los complejos [Cu(II) – isoleucina], [Mn(II) – isoleucina] y [UO2(II) – isoleucina] fueron (8.41 ± 0.07; 6.43 ± 0.03), (3.87 ± 0.11; 2.61 ± 0.06) y (7.91 ± 0.13; 5.73 ± 0.04) para los complejos Cu(II), Mn(II) y UO2(II), respectivamente, a fuerzas iónicas de 0.1 Mol/L y a 35 0C.

Keywords: ionoforesis en papel, movilidad, cobre(II), manganeso (II), uranilo(II), constantes de estabilidad, isoleucina.

 

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References

1. Biernat, J. Rocz. Chem. 1964, 38, 343–349.         [ Links ]

2. O' Meara, S. J.; Kinsella, B. T. Br. J. Pharmacol. 2004, 143, 318–330.         [ Links ]

3 Zhu, K.; Ding, X.; Julotok, M.; Wilkinson, B. J. Appl. Environ. Microbiol. 2005, 71 (2), 8002–8007.         [ Links ]

4. Guan, G.; Todo, T.; Tanaka, M.; Young, G.; Nagahama, Y. PNAS 2000, 97 (7), 3079–3083.         [ Links ]

5. Wang, L. –B.; Shen, J. –G.; Zhang, S. – Z.; Ding, K. F.; Zheng, S.; World J. Gastroenterol. 2004, 10 (9), 1297–1300.         [ Links ]

6. Takasata, Y.; Momma, S.; Smith, Q. R. J. Neurochem, 1985, 45 (4), 1013– 1020.         [ Links ]

7. Kawabe, M.; Sano, M.; Hagiwara, A.; Tamao, S.; Suzuki, S.; Shirai, T. Food Chem. Toxicol. 2006, 44(2), 278–285.         [ Links ]

8. Schadewaldt, P.; Bodner–Leidecker, A.; Hammen, H. –W.; Wendel, U. Clinical Chem. 1999, 45, 1734–1740.         [ Links ]

9. Xu, H.; Zhang, Y.; Guo, X.; Zhao, G. J. Bacteriol. 2004, 186 (16), 5400–5409.         [ Links ]

10. Banerjea, D. Everyman s Sci. 1995, 29(6), 176–184.         [ Links ]

11. Patel, R. P.; Svistunenko, D.; Wilson, M. T.; Darley – Usmar, V. M. Biochem. J. 1997, 322, 425–433.         [ Links ]

12. Podunavac – Kuzmanovic, S. O.; Markov, S. L.; Vojinovic, L. S. APTEFF, 2004, 35, 247–254.         [ Links ]

13. Zhang, F.; Yajima, T.; Masuda, H.; Odani, A.; Yamauchi, O. Inorg. Chem., 1997, 36 (25), 5777–5784.         [ Links ]

14. Alpoguz, H.K.; Kaya, A.; Karacus, M. Turk J. Chem. 2005, 29, 345–353.         [ Links ]

15. Kumar, G.; Kiremire, E. M. R. Chemistry 2007, 16 (5), 386–391.         [ Links ]

16. Bauerova, K.; Valentova, J.; Ponist, S.; Navarova, J.; Komendova, D.; Mihalava, D. Biologia Bratislava, 2005, 60(17), 65–68.         [ Links ]

17 Kisseleva, N.; Khvorova, A.; Westhof, E.; Schiemann, O. RNA 2005, 11, 1–6.         [ Links ]

18 Baffert, C.; Collomb, M. –N.; Deronzier, A.; Thorup, N. Dalton Trans. 2003, 1765–1772.         [ Links ]

19. Liu, S. B.; Perera, L.; Pedersen, L. G. MolecularPhys. 2007, 105, 2893– 2898.         [ Links ]

20. Zhu, Q. –Y.; Dia, J.; Jia, D. –X.; GaO, L. –H.; Lin, H. –H. Eur. J. Inorg. Chem. 2004, 24, 4789–4794.         [ Links ]

21. Qu, P.; Ji, R. –C.; Kato, S. Pancreas 2005, 31 (2), 148–155.         [ Links ]

22. Shetty, V.; Hussaini, S.; Alvi, S.; Joshi, L.; Raza, A. Br. J. Haematol. 2002, 116(4–II), 817–825.         [ Links ]

23. Giles, M. E.; Fernley, R. T.; Nakamura, Y.; Moeller, I.; Oldfied, B. J. J. Histochem. Cytochem. 1999, 47, 507–516.         [ Links ]

24. Romanenko, A. S.; Kovtun, G. Yu.; Salyaev, R. K. Ann. Bot. 1986, 57, 1–10.         [ Links ]

25. Anderson, J. L.; Spitz, H. B.; Yiin, J. H. Health Phys. 2007, 93(6), 636–644.         [ Links ]

26. Shaw, D. J. Electrophoresis, Academic Press, London, 1969, 99–103.         [ Links ]

27. Tewari, B. B. Russ, J. Coord. Chem. 2003, 29, 441 – 444.         [ Links ]

28. Tewari, B. B. Rev. Inorg. Chem. 1996, 16, 91–100.         [ Links ]

29. Tewari, B. B.; Singh, R. K. P.; Kamaluddin; Yadava, K. L. Trans. SAEST, 1990, 25, 124–127.         [ Links ]

30. Tewari, B. B., Singh R. K. P.; Yadava, K. L. J. Chromatogr. 1991, 542, 537–544.         [ Links ]

31. Martell, A. E.; Smith, R. M. Critical Stability Constants, Vol. 1, Amino Acids, Plenum Press, New York, London, 1974, P. 12        [ Links ]

32. Joshi, J. D.; Bhattacharya, P. K. J. Indian Chem. Soc. 1980, 57, 336–339.         [ Links ]

33. Sillen, L. G.; Martell, A. E. Stability Constants of Metal Ion Complexes, Special Publication No. 17, Chemical Society London, 1974, p. 464.         [ Links ]

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