CHEM102 Lecture Notes - Lecture 22: Spectrochemical Series, Crystal Field Theory, Orbital Hybridisation

• School: University of Alberta
• Department: Chemistry
• Course: CHEM102
• Professor: Yoram Apelblat

Document Summary

I encourage you to vote in the student union elections. M, march 9, 11:00 m, march 16, 11:00. 30 40 minutes (yet to be determined) Hybridization theory doesn"t work well for complex ions. No information is given about the energies of the d orbitals. Instead, crystal field theory (cft) focuses on energies of the d orbitals. In the simplest form of cft, the ligands are approximated as negative point charges and the metal ligand bond is ionic. Two d orbitals point directly at the ligands dz2 , dx2 y2. Three d orbitals point between the ligands dxy , dyz , dxz t2g set less repulsions lower energy. It is this splitting that is used to explain the magnetic properties and colors of tm complexes. Small known as: weak field or high spin e will fill the t2g and eg orbitals before pairing up. 3 which means that this is co3+ with a.