Vol. 5 (11) pp. 449-456 DOI: 10.21474/IJAR01/5790

SPECIATION OF BINARY COMPLEXES OF CO(II), NI(II) AND CU(II) WITH L-THREONINE IN SLS - WATER MIXTURES.

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  • School of Chemistry, Andhra University, Visakhapatnam-530003, Andhrapradesh, India.
  • Department of Chemistry, Dadi Institute of Engineering & Technology, Anakapalli, Visakhapatnam.
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Abstract

Chemical speciation of binary complexes of Co(II), Ni(II), and Cu(II) with L- Threonine (Thr) has been studied in varying concentrations (0.0?2.5% w/v) of SLS-water mixtures maintaining an ionic strength of 0.16 mol L? 1 (NaCl) at 303 K. Stability constants of binary complexes were refined with the computer program MINIQUAD75. The best - fit chemical models were selected based on statistical parameters and residual analysis. The species detected are ML2, ML2H and ML2H2 for Co (II), Ni (II) and Cu (II). The trend in the variation of stability constants with change in mole fraction of the medium was explained on the basis of electrostatic and non-electrostatic forces. The species distribution diagrams and the plausible equilibria for the formation of the species are also presented.

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P. Surya Sunitha, Ch. Nageswara Rao and B. B. V Sailaja. (2017); SPECIATION OF BINARY COMPLEXES OF CO(II), NI(II) AND CU(II) WITH L-THREONINE IN SLS - WATER MIXTURES., International Journal of Advanced Research (IJAR), 5 (11), 449-456, ISSN 2320-5407. DOI: https://doi.org/10.21474/IJAR01/5790

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P. SuryaSunitha

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References

  1. Taf, R. W. (1983): Protonic Acidities and Basicities in the Gas Phase and in Solution: Substituent and Solvent Effects. Phys. Org. Chem., 14: 247-350.
  2. Hens J. (1975): Structural effects on equilibria in organic chemistry, Wiley, New York.
  3. Teigen, S. and Andersen R. (1992): Trace metals in the marine environment: State of The Art and Research Needs.Programme on marine pollution. Croatian Society of Chemical Engineers.
  4. Paquin, P.R., Santore, R.C., WuB., Kavvadas C.D. and Di Toro D.M. (2000): The biotic ligand model: a model of the acute toxicity of metals to aquatic life. Environ. Sci. Policy., 3:175-182.
  5. Hussain Reddy, K. (2003): Bioinorganic Chemistry, New International Publishers, India: 183.
  6. Hu, L.T. and Mobley, H. L. (1990): Purification and N-terminal analysis of urease from Helicobacter pylori, , 58(4): 992-998.
  7. Mulrooney, S.B., Hausinger, R.P. (2003): Nickel uptake and utilization by microorganisms, Rev., 27 (2-3): 239-261.
  8. Dunn, B. E., Champbell, G. P., Perz-Perz, G. I., Blaser, M. J. (1990): Purification and characterization of urease from Helicobacter pylori. Biol. Chem., 265(16): 9464-9469.
  9. Nielson, F.H., Shuler, T.R., Zimmerman, T.J., Uthes, E.O. (1988): Magnesium and methionine deprivation affect the response of rats to boron deprivation. Trace. Elem. Res., 17: 91-107.
  10. Adams, M.W.W., Mortenson, L.E., Chen, J. S. (1981): Hudrogenase, Biophys. Acta., 594: 105-176.
  11. Cammack, R. (1995): Redox enzymes. Splitting molecular hydrogen, Nature, 373(6515): 556-557.
  12. Kolodziej, A.F. (1994): The chemistry of nickel-containing enzymes. Inorg. Chem., 41: 493-597.
  13. Walker, W. R., Reeves, R. R., Brosanan R., Coleman, G. (1977): Perfusion of intact skin by a saline solution of bis(glycinato) copper(II). Chem., 7: 271-276.
  14. Holm, R.H., Kennepohl P., Solomon E. I. (1996): Structural and functional aspects of metal sites in biology, Rev., 96: 2239-2314.
  15. Mukherjee, R. (2006): Comprehensive Coordination Chemistry-II, From Biology to Nanotechnology, Elsevier: Oxford, 6: 747.
  16. Cardana, A., Baertl, J. M. and Graham, G. G. (1964): Copper deficiency in infancy, Pediatrics, 34: 324-336.
  17. Freeman, H.C. and Martin, R.-P., (1969): Potentiometric Study of Equilibria in Aqueous Solution between Copper (II) I ens, L (or D) -Histidine and L-Threonine and Their Mixtures. J. Chem., 244(18): 4823-4830
  18. Grenouillet, P., Martin, R-P., Rossi, A. and Ptak, M. (1973): lnteractions between copper(ll) ions ... L-a//o-threonine and L-serine in aqueous solutions. Biophys. Acta., 322: 185-194.
  19. Al-Ani, N. and Olin, A. (1984): The complex formation between copper (2+) and proline, serine, threonine or tyrosin . Chem.?Scr.? 23(4): 161-165.
  20. Cristancho, D.M., Delgado, D.R, Martinez, F., Mohammad, A. (2011): Rev. Colomb. Cienc. Qu?m. Farm., 40: 92-115.
  21. Jeffery G.H., Bassett J., Mendham J., Denney R.C. (1989): Vogel?s textbook of quantitative chemical analysis, 5th ed. New york: Johnwiley & Sons Inc., pp. 321?322.
  22. Rao, R.S. and Rao, G.N. (2005): Computer applications in chemistry. Mumbai: Himalaya Publishing House, pp. 302-309.
  23. Gran, G. (1952): Determination of the equivalence point in potentiometric titrations, Part II: Analyst, 77: 661?671.
  24. Gran, G. (1988): Equivalence volumes in potentiometric titrations. Anal. Chim. Acta.; 206:111?123.
  25. Rao, Ch. N, Srinu, B., Gowri Kumari, V., Sailaja, B.B.V. (2016): Computer-augmented modeling studies of Pb(II) and Cd(II) complexes with maleic acid in ethylene glycol?water mixture, Spec. Bioavailab., 28(1-4): 66-71.
  26. Rao, Ch. N, Gowri Kumari, V., Sailaja, B.B.V (2014): Solvent effect of protonation eqilibria of L-Asparagine and Maleic Acid in dimethyl J. Indian Chem. Soc., 91(3):1021-1055.
  27. Rao, G. N.(1989): Ph.D. Thesis, Andhra University, Visakhapatnam, India.
  28. Gans, P., Sabatini, A. and Vacca, A.(1976): An improved computer program for the computation of formation constants from potentiometric data. Inorg. Chim. Acta.,18: 237-239.
  29. Rao, Ch. N. and Sailaja, B.B.V. (2015): Speciation of Binary Complexes of Pb(II) and Cd(II) With Maleic acid in Acetonitrile Medium. Indian Chem. Soc., 92: 1641-1646.
  30. Rao, CH. N, Ramanaiah, M. Sailaja, B.B.V. (2016): Speciation of binary complexes of Pb(II) and Cd(II) with L-asparagine in dimethyl sulfoxide - water mixtures Bull. Chem. Soc. Ethiop., 30(1): 71-78.

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