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Studies on mixed ligand complexes of cobalt(II), nickel(II), copper(II) and zinc(II) involving 8-hydroxyquinoline-5-sulphonic acid as a primary ligand and substituted catechols as secondary ligands

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Summary

Stability constants (K MAMAL ) and other thermodynamic parameters of the MAL complexes (charges omitted) [M=CoII, NiII, CuII or ZnII; AH2=8-hydroxyquinoline-5-sulphonic acid; LH2=catechol (L1H2), 1,2-dihydroxybenzene-sulphonate (L2H2), 1,2-dihydroxybenzene-3, 5-disulphonate (L3H2), 4-nitro-1,2-dihydroxybenzene (L4H2)] have been determined at 25°C and at an 0.1 M KNO3 ionic strength by the extended Irying-Rossotti technique. The stability constants lie in the sequences:\(K_{ML}^M > K_{MAL}^{MA} ?K_{ML_2 }^{ML} ; K_{MAL}^{MA_1 } > K_{MAL}^{MA_2 } > K_{MAL}^{MA_3 } \gg K_{MAL}^{MA_4 } \) and all follow the Irving-Williams stability order. These observations can be explained in terms of electrostatic interaction, change of electrophilicity of the bound metal and π-acidic character of the primary ligand.

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References

  1. A. K. Das,J. Electrochem. Soc. India,37, 269 (1988).

    Google Scholar 

  2. A. K. Das,J. Electrochem. Soc. India, (communicated).

  3. D. R. Williams in D. R. Williams (Ed.),An Introduction to Bio-inorganic Chemistry, Charles C Thomas, USA, 1976, p. 352.

    Google Scholar 

  4. A. K. Das,chem. Educ.,4, 44 (1987).

    Google Scholar 

  5. J. Schubert and S. K. Deer,Nature,275, 311 (1987);278, 581 (1979).

    Google Scholar 

  6. H. M. Irving and H. S. Rossotti,J. Chem. Soc., 3597 (1955); 2904 (1954).

    Google Scholar 

  7. H. Irving and R. J. P. Williams,Nature,162, 746 (1948).

    Google Scholar 

  8. A. H. Jahn and E. Teller,Proc. Roy. Soc., A.,161, 220 (1937).

    Google Scholar 

  9. P. K. Bhattacharya and V. K. Patel,J. Indian Chem. Soc.,59, 1244 (1982).

    Google Scholar 

  10. P. K. Battacharya, N. A. Emanuel and N. D. Kulkarni,Proc. Indian Acad. Sci. (Chem. Sci.) 97, 529 (1986).

    Google Scholar 

  11. S. N. Limaye and M. C. Saxena,J. Indian Chem. Soc.,61, 842 (1984).

    Google Scholar 

  12. V. S. Sharma and J. Schubert,J. Chem. Educ.,46, 506 (1969).

    PubMed  Google Scholar 

  13. R. Dewitt and J. I. Watters,J. Am. Chem. Soc.,76, 3810 (1954).

    Google Scholar 

  14. C. F. Richard, R. L. Gustafson and A. E. Martell,J. Am. Chem. Soc.,81, 1033 (1959).

    Google Scholar 

  15. G. N. Mukherjee and A. Sen,Indian J. Chem.,23A, 496 (1984).

    Google Scholar 

  16. M. V. Chidambaram and P. K. Battacharya,Acta. Chim. (Budapest),75, 123 (1973).

    Google Scholar 

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  1. Department of Chemistry, Regional Engineering College, 713209, Durgapur, West Bengal, India

    Asim K. Das

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Das, A.K. Studies on mixed ligand complexes of cobalt(II), nickel(II), copper(II) and zinc(II) involving 8-hydroxyquinoline-5-sulphonic acid as a primary ligand and substituted catechols as secondary ligands. Transition Met Chem 14, 200–202 (1989). https://doi.org/10.1007/BF01043794

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