• Origin of accidental degeneracy in ligand-field splittings of substituted octahedral complexes

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    • Keywords

       

      Ligand-field splitting; accidental degeneracy; degenerate perturbation theory; symmetry; octahedral complexes

    • Abstract

       

      Accidental degeneracy seems to be the rule rather than an exception amongst thed orbital energies of substituted octahedral complexes ofd1 configuration. By using symmetry and physical arguments, in conjunction with first-order and second-order degenerate perturbation theory, it is shown that such accidental degeneracies arise in crystal-field theory due to the choice of an inflexible basis set of metal orbitals which neglects the polarisation of metal orbitals by the ligand charges.

    • Author Affiliations

       

      S K Bose1 B M Deb2 D Mukherjee3

      1. Department of Chemistry, University College of Science, Calcutta - 700 009
      2. Department of Chemistry, Indian Institute of Technology, Bombay - 400 076
      3. Department of Physical Chemistry, Indian Association for the Cultivation of Science, Calcutta - 700 032
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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