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Catalytic effects in reactions of chromium(III) part II: The role of excess ligand buffer in complexation of Cr(III) with some aminopolycarboxylic acids

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Abstract

The complexation of Cr (III) by EDTA, HEDTA and DCTA is channelled through ion pair formation between Cr (III) and the ambient ligand species. The ion pair further undergoes deprotonation giving rise to hydroxo chromium2+ species in the immediate vicinity of the counter ligand anion which helps in achieving the first coordination linkage between Cr(III) and the ligand.

In addition to providing adequate buffer capacity, the excess ligand buffer catalyses the deprotonation rate by offering itself as a base towards the acidic ion pair.

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References

  1. Hamm, R. E.,J. Am. Chem. Soc. 75 5670 (1953).

    Article  Google Scholar 

  2. Bhat, T. R. and Phatak, G. M.,J. Inorg. Nucl. Chem. 28 3058 (1566).

    Article  Google Scholar 

  3. Phatak, G. M., Bhat, T. R. and Shankar, J.,J. Inorg. Nucl. Chem. 32 1305 (1970).

    Article  Google Scholar 

  4. Gluckligh-Geher, J. and Beck, M. T.,Acta Chim. Sci. Hung. 70 (1971).

  5. Rao, V. K., Sunder, D. S. and Sastry, M. N.,Chemist-Analyst 54 86 (1965).

    Google Scholar 

  6. Rao, V. K., Sunder, D. S. and Sastry, M. N.,Chemist-Analyst 93 218 (1966).

    Google Scholar 

  7. Vogel, A. I.,A Textbook of Quantitative Inorganic Analysis, Longmans Green and Co., 3rd ed. (1962).

  8. Boef Den, G. and Poeder, B. C.,Anal. Chim. Acta,30 261 (1964).

    Article  Google Scholar 

  9. Shankar, J. and Phatak, G. M.,Indian. J. Chem. 10 861 (1972).

    Google Scholar 

  10. Phatak, G. M., Ph.D., Thesis submitted to University of Poona, 1974.

  11. Stability constants of metal ion completes, Spec. Pubis. Chem. Soc. 17 (1964).

  12. Pearson, R. G. and Basolo, P.,J. Am. Chem. Soc. 78 4878 (1956).

    Article  Google Scholar 

  13. Frost, A. A. and Pearson, R. G.,Kinetics and Mechanism. A study of Homogeneous Chemical Reactions, N. Y. John Wiley and Sons Inc., 2nd Ed. (1961).

    Google Scholar 

  14. Matts, T. C. and Moore, P.,Chem. Commun. 29 (1969);J. Chem. Soc. A. 1997 (1969)

  15. Carlyle, D. W. and King, E. L.,Inorg. Chem. 9 2333 (1970).

    Article  Google Scholar 

  16. Halpern, J., Palmer, R. A. and Blakley, L. M.,J. Am, Chem. Soc. 88 2877 (1966).

    Article  Google Scholar 

Download references

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Author notes

  1. J. Shankar

    Present address: University Grants Commission, Bahadur Shah Zafar Marg, 110002, New Delhi

Authors and Affiliations

  1. Chemistry Division, Bhabha Atomic Research Centre, 400085, Bombay

    G. M. Phatak, K. V. S. Rama Rao & J. Shankar

Authors
  1. G. M. Phatak
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  2. K. V. S. Rama Rao
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  3. J. Shankar
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Phatak, G.M., Rao, K.V.S.R. & Shankar, J. Catalytic effects in reactions of chromium(III) part II: The role of excess ligand buffer in complexation of Cr(III) with some aminopolycarboxylic acids. Proc. Indian Acad. Sci. 83, 243–257 (1976). https://doi.org/10.1007/BF03051380

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  • DOI: https://doi.org/10.1007/BF03051380

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