Skip to main content
Log in

Potentiometric and spectroscopic study of selenomethionine complexes with copper(II) and zinc(II) ions

  • Full Papers
  • Published:
Transition Metal Chemistry Aims and scope Submit manuscript

Summary

The stepwise stability constants of 1:1 and 2:1 complexes of selenomethionine (SeMet) with CuII and ZnII ions have been determined in NaNO3 (0.1m) supporting electrolyte by potentiometric titration at 25 °C. The overall log stability constant (logβML2 = [ML2]/[M2+][L−1]2) for CuII and ZnII complexes are 14.50 and 8.75, respectively. Two new solids were prepared and identified by elemental microanalysis as (SeMet)2Cu and (SeMet)2Zn. I.r. and Raman spectral studies indicated metal coordination with the nitrogen and oxygen atoms of the amino acidato group of SeMet. The corresponding stretching bands were assigned at 341.1cm for Cu-O, 352.9 cm for Zn-O, 497.3 cm for Cu-N and 475.2 cm for Zn-N bonds.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. G. R. Lenz and A. E. Marttel,Biochem.,3, 745 (1964).

    Google Scholar 

  2. N. C. Li and R. A. Manning,J. Am. Chem. Soc.,77, 5225 (1955).

    Google Scholar 

  3. C. A. McAuliffe, J. W. Quangliano and L. M. Vallarino,Inorg. Chem.,5, 1996 (1966).

    Google Scholar 

  4. S. E. Livingston and J. D. Nolan,Inorg. Chem.,7, 1447 (1968).

    Google Scholar 

  5. C. A. McAuliffe,J. Chem. Soc. A, 641 (1967).

  6. M. R. Harrison and F. J. C. Rossotti,Chem., Comm.,175 (1970).

  7. K. Krishnan and R. A. Plane,Inorg. Chem.,6, 55 (1967).

    Google Scholar 

  8. M. Itabashi and K. Itoh,Bull. Chem. Soc. Jpn,53, 3131 (1980).

    Google Scholar 

  9. K. Torii and Y. Iitaka,Acta Crystallogr.,B29, 2799 (1973).

    Google Scholar 

  10. D. M. Goodgame and I. Hussain,Inorg. Chimica Acta,169, 133 (1990).

    Google Scholar 

  11. V. K. Saxena and M. N. Srivastava,J. Inorg. Biochem.,38, 37 (1990).

    Google Scholar 

  12. A. L. Lehninger,Biochemistry, Worth, New York, 1970.

    Google Scholar 

  13. A. A. Isab,Inorg. Chimica Acta,91, L35 (1984).

    Google Scholar 

  14. A. A. Isab,Inorg. Chimica Acta,153, 209 (1988).

    Google Scholar 

  15. G. F. Combs, Jr and S. B. Combs,The Role of Selenium in Nutrition, Academic Press, Inc., New York, 1986.

    Google Scholar 

  16. G. F. Combs, Jr, J. E. Spallholz, O. A., Levander and J. E. Oilfield,Selenium in Biology and Medicine, Van Nostrand Reinhold Co. Inc., New York, 1987.

    Google Scholar 

  17. J. C. Rossoti and H. Rossotti,The Determination of Stability Constants, McGraw Hill, New York, 1961.

    Google Scholar 

  18. A. E. Martell and R. J. Motekaitis,Determination and Use of Stability Constants, VCH Publishers, Inc., New York, 1989.

    Google Scholar 

  19. D. D. Perrin, B. Dempsey and E. P. Serjeant, pKα-Prediction of Organic Acids and Bases, Chapman & Hall, San Francisco, 1981.

    Google Scholar 

  20. R. M. C. Dawson, D. C. Elliot, W. H. Elliot and K. M. Jones (Eds)Data for Biochemical Research, Oxford University Press, Oxford, 1969.

    Google Scholar 

  21. G. L. Eichhorn (Ed.),Inorganic Biochemistry, Elsevier, Amsterdem, 1973, Vol. 1, Ch. 4.

    Google Scholar 

  22. J. R. Kinkaid and K. Nakamoto,Spectrochimica Acta,32A, 277 (1976).

    Google Scholar 

  23. K. Nakamoto,Infrared and Raman Spectra of Inorganic Compounds, Wiley, New York, 1986.

    Google Scholar 

  24. L. Shepard and R. E. Huber,Can. J. Biochem.,47, 877 (1969).

    Google Scholar 

  25. G. Zdansky,Arkiv Kemi,19, 559 (1962).

    Google Scholar 

  26. A. W. Helinger, S. L. Wenhold and T. V. Long, II,J. Am. Chem. Soc.,92, 6474, 6481 (1970).

    Google Scholar 

  27. G. C. Percy and H. S. Stenton,J. Chem. Soc., Perkin Trans., 2429 (1976).

  28. M. V. Veidis and G. J. Palenik,Chem. Commun., 1277 (1969).

  29. R. B. Wilson, P. de Meester and D. J. Hodgson,Inorg. Chem.,16, 1498 (1977).

    Google Scholar 

  30. C. A. Bear and H. C. Freeman,Acta Crystallog.,B32, 2534 (1976).

    Google Scholar 

  31. E. Malowsky, Jr,Vibrational Spectra of Organometallic Compounds, Wiley, New York, 1977.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zainal, H.A., Wolf, W.R. Potentiometric and spectroscopic study of selenomethionine complexes with copper(II) and zinc(II) ions. Transition Met Chem 20, 225–227 (1995). https://doi.org/10.1007/BF00143481

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00143481

Keywords

Navigation