Transition Metal Chemistry

, Volume 16, Issue 2, pp 200–203 | Cite as

Polyazamacrocycles VIII. Polarographic behaviour of some tetraaza macrocyclic complexes of copper(II), nickel(II) and cobalt(III)

  • Ramesh Bembi
  • Randhir Singh
  • Satya V. Singh
Full Papers


The polarographic reduction at a dropping mercury electrode of several CuII, NiII and CoIII complexes of tetraaza macrocycles has been studied in 0.1M NaClO4 as supporting electrolyte. The CuII complexes show values of half-wave potentials which can be correlated to the ring size and ligand field stabilisation. A similar, though less marked, trend is noticeable in the reduction of the NiII complexes. No such conclusions can be drawn in the case of the CoIII complexes.


Nickel Mercury Cobalt Catalysis NaClO4 
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  1. (1).
    P. Delahay,Double Layer Electrode Kinetics, Interscience, New York, 1965.Google Scholar
  2. (2).
    D. R. Crow and J. V. Westwood,Quart. Rev. (London),XIX,1, 57 (1965).Google Scholar
  3. (3).
    J. J. Ulrich and F. C. Anson,Inorg. Chem.,8, 195 (1969).Google Scholar
  4. (4).
    M. J. Weaver and F. C. Anson,J. Electroanal. &. Interfacial Chem.,65, 759 (1975).Google Scholar
  5. (5).
    R. Bembi, V. K. Bhardwaj, R. Singh, K. Taneja and S. Aftab,Inorg. Chem.,23, 4153 (1984).Google Scholar
  6. (6).
    R. Bembi, S. M. Sondhi, A. K. Singh, A. K. Jhanji, T. G. Roy, J. W. Lown and R. G. Ball,Bull. Chem. Soc. Japan,62, 3701 (1989).Google Scholar
  7. (7).
    R. W. Hay, R. Bembi and D. A. House,J. Chem. Soc., Dalton Trans., 1921 (1984).Google Scholar
  8. (8).
    R. W. Hay, D. A. House and R. Bembi,J. Chem. Soc., Dalton Trans., 1927 (1984).Google Scholar
  9. (9).
    R. Bembi, T. G. Roy and A. K. Jhanji,Inorg. Chem.,27, 496 (1988).Google Scholar
  10. (10).
    L. Fabrizzi, A. Poggi and P. Zanello,J. Chem. Soc., Dalton Trans., 1495 (1984).Google Scholar
  11. (11).
    L. Fabrizzi, P. Paoletti and A. B. P. Lever,Inorg. Chem.,15, 1502 (1974).Google Scholar
  12. (12).
    P. K. Bhattacharya,J. Inorg. Nucl. Chem.,43, 41 (1981).Google Scholar
  13. (13).
    R. Bembi, S. Aftab, T. G. Roy and A. K. Jhanji,J. Coord. Chem.,14, 119 (1985).Google Scholar
  14. (14).
    M. Micheloni, P. Paoletti, A. Poggi and L. Fabbrrizi,J. Chem. Soc., Dalton Trans. 61 (1982).Google Scholar
  15. (15).
    L. Fabbrrizi,J. Chem. Soc., Dalton Trans., 1857 (1979).Google Scholar
  16. (16).
    R. W. Hay, M. P. Pujari and R. Bembi,Transition Met. Chem.,11, 261 (1986).Google Scholar
  17. (17).
    D. P. Rillema, J. F. Endicott and E. Papaconstantiou,Inorg. Chem.,10, 1739 (1971).Google Scholar

Copyright information

© Chapman and Hall Ltd 1991

Authors and Affiliations

  • Ramesh Bembi
    • 1
  • Randhir Singh
    • 1
  • Satya V. Singh
    • 1
  1. 1.Department of ChemistryUniversity of RoorkeeRoorkeeIndia

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