Crystal Field Theory
| Formula / Notation | Δ_oct (octahedral splitting); Δ_tet = (4/9)Δ_oct (tetrahedral splitting) |
|---|---|
| Also Known As | CFT, crystal field model, electrostatic ligand field model |
What is Crystal Field Theory?
Crystal Field Theory (CFT) is a model that describes the electronic structure of transition metal complexes by considering the effect of a surrounding array of negative charges (ligands) on the energies of d orbitals of the central metal ion. It explains the colour, magnetism, and stability of coordination complexes by the d-orbital splitting pattern.
Formula & Notation
Other Names / Synonyms: CFT, crystal field model, electrostatic ligand field model
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Crystal Field Theory (CFT) is a model that describes the electronic structure of transition metal complexes by considering the effect of a surrounding array of negative charges (ligands) on the energies of d orbitals of the central metal ion. It explains the colour, magnetism, and stability of coordination complexes by the d-orbital splitting pattern.
CFT successfully explains the colours (d-d transitions), magnetic properties (number of unpaired electrons → paramagnetism), and thermodynamic stabilities of transition metal complexes. It guides selection of ligands for spectroscopic applications and catalyst design.
No direct safety concern. CFT is a theoretical model. In practice, transition metal complexes studied using CFT may be toxic (chromium, cobalt, nickel compounds) and require appropriate PPE and ventilation.
The formula or notation for Crystal Field Theory is: Δ_oct (octahedral splitting); Δ_tet = (4/9)Δ_oct (tetrahedral splitting)