Orbital Occupancy in a Crystal Field

• Depends on the magnitude of D

• Varies with the structure

  Doct > Dtetr (tetra ~45% of oct)
  

• Varies with principal energy level

  4d > 3d (4d ~1.45 x 3d)
  
  5d ~ 4d (5d ~1.74 x 3d)

• Varies with charge

  3+ > 2+
  

• D varies with the metal

• D varies with the ligand (e.g., CN- > NH3)

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