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The Influence of Steric and Electronic Effects Upon the Stereochemistry of Group VIII Metal Complexes

  • A. B. P. Lever
Conference paper

Abstract

Complexes of Iron, Cobalt and Nickel occur in a variety of stereo-chemistries. Nickel(II) is particularly interesting in that apparently small differences in the nature of the ligands around the metal ion can alter the preferred stereochemistry. Much of the published work in this connection has dealt with substituted salicylaldimines (1) and substituted phosphines (2). Some of the factors responsible for the variations in stereochemistry are discussed briefly below. It is proposed that electronic distortion which may lead to changes in stereochemistry occurs when dissimilar ligands are bonded to the metal ion. This distortion may be detected by magnetic and/or spectral studies, but not necessarily by crystallographic studies. This is well known with ions such as Co(III), but there has been little extension previously to nickel compounds. The Table illustrates the stereochemical variations occurring in amine nickel complexes when the halogen is changed and also indicates how such parameters as the magnetic moment, crystal field energy and Racah parameter vary.

Keywords

Coordination Polyhedron Tetragonal Distortion Ligand Atom Racah Parameter Bromo Pyridine 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    FRASSON, PANATTONI and SACCONI, J.Phys.Chem., 63, 1908 (1959)Google Scholar
  2. 1a.
    HOLM and SWAMINATHAN, Inorg.Chem., 1, 599 (1962)CrossRefGoogle Scholar
  3. 1b.
    HOLM and SWAMINATHAN, Inorg.Chem., 2, 181 (1963)CrossRefGoogle Scholar
  4. 1c.
    HOLM, J.Am.Chem.Soc., 82, 5632 (1960)CrossRefGoogle Scholar
  5. 1d.
    HOLM, J.Am.Chem.Soc., 83, 4683 (1961)CrossRefGoogle Scholar
  6. 1e.
    SACCONI, PAOLETTI and DELRE, J.Am.Chem.Soc., 79, 4062 (1957).CrossRefGoogle Scholar
  7. 2.
    COUSSMAKER, HUTCHINSON, MELLOR, SUTTON and VENANZI, J.Chem.Soc. (London), 1961, 2705Google Scholar
  8. 2a.
    SCATTURIN, J.Inorg.Nucl.Chem., 8, 447 (1958)CrossRefGoogle Scholar
  9. 2b.
    GIACOMETTI and TURCO, J.Inorg.Nucl.Chem., 15, 242 (1960).CrossRefGoogle Scholar
  10. 3.
    LEVER, LEWIS and NYHOLM, J.Chem.Soc. (London), 1963, 2552.Google Scholar
  11. 4.
    LEVER, Unpublished.Google Scholar
  12. 5.
    e.g. COTTON and FACKLER, J.Am.Chem.Soc., 83, 2818 (1961)CrossRefGoogle Scholar
  13. 5a.
    FACKLER and COTTON, J.Am.Chem.Soc., 83, 3775 (1961).CrossRefGoogle Scholar
  14. 6.
    GOODGAME and GOODGAME, J.Chem.Soc. (London), 1963, 207.Google Scholar
  15. 7.
    GLONEK, CURRAN and QUAGLIANO, J.Am.Chem.Soc., 84, 2014 (1962).CrossRefGoogle Scholar
  16. 8.
    LEVER, LEWIS and NYHOLM, J.Chem.Soc. (London), 1964, in press.Google Scholar
  17. 9.
    KING, KÖrÖS and NELSON, J.Chem.Soc. (London), 1963, 5449.Google Scholar
  18. 10.
    MAKI, J.Phys.Chem., 29, 162 (1952).CrossRefGoogle Scholar
  19. 11.
    BOSTRUP and JøRGENSEN, Acta Chem.Scand., 11, 1223 (1957).CrossRefGoogle Scholar
  20. 12.
    TANABE and SUGANO, J.Phys.Soc.Japan, 9, 753, 766 (1954).CrossRefGoogle Scholar
  21. 13.
    HOLT Jr., BOUCHARD and CARLIN, J.Am.Chem.Soc., 86, 519 (1964).CrossRefGoogle Scholar
  22. 14.
    LEWIS, Science Progress, 1963, 452.Google Scholar
  23. 15.
    JèRGENSEN, “Absorption Spectra and Chemical Bonding”. Pergamon Press, London (1962).Google Scholar
  24. 16.
    GILL, NYHOLM, BARCLAY, CHRISTIE and PAULING, J.Inorg.Nucl.Chem., 18, 88 (1961).CrossRefGoogle Scholar
  25. 17.
    DUNITZ, Acta Cryst., 10, 307 (1957).CrossRefGoogle Scholar
  26. 18.
    NELSON, Private Communication.Google Scholar
  27. 19.
    LEVER, LEWIS and NYHOLM, J.Chem.Soc. (London), 1963, 5042.Google Scholar
  28. 20.
    LEVER, In Press.Google Scholar
  29. 21.
    GOODGAME and VENANZI, J.Chem.Soc. (London), 1963, 5909.Google Scholar

Copyright information

© Springer-Verlag Wien 1964

Authors and Affiliations

  • A. B. P. Lever
    • 1
  1. 1.Department of Chemistry, Faculty of TechnologyUniversity of ManchesterUK

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