Why are low spin tetrahedral compounds not formed?
 

Asked by Navya Benny | 8th Jan, 2016, 12:44: PM

Expert Answer:

  • There are only 4 ligands in a tetrahedral complex.
  • So, the ligand field is roughly 2/3 of the octahedral field.
  • The direction of ligand approach in tetrahedral complex does not coincide with the d-orbitals.
  • This reduces the field by a factor of 2/3. Hence, ∆t is roughly 2/3 x 2/3 = 4/9 of ∆o.
  • As a result, all tetrahedral complexes are high-spin since the CFSE is normally smaller than the paring energy.

Answered by Prachi Sawant | 8th Jan, 2016, 04:39: PM