Orgel diagram

Orgel diagrams are restricted to only show weak field (i.e. high spin) cases, and offer no information about strong field (low spin) cases.

[1] Orgel diagrams will, however, show the number of spin allowed transitions, along with their respective symmetry designations.

In an Orgel diagram, the parent term (P, D, or F) in the presence of no ligand field is located in the center of the diagram, with the terms due to that electronic configuration in a ligand field at each side.

Also, for the D Orgel diagram, the left side contains d1 and d6 tetrahedral and d4 and d9 octahedral complexes.

For the F Orgel diagram, the left side contains d2 and d7 tetrahedral and d3 and d8 octahedral complexes.