How to Calculate Crystal Field
What is Crystal Field?
Crystal field theory explains metal complex color, magnetism, and stability through d-orbital splitting in ligand field.
Step-by-Step Guide
- 1Input metal ion, ligands, geometry
- 2Calculate d-orbital splitting energies
- 3Predict color and magnetic properties
Worked Examples
Input
[Fe(CN)₆]⁴⁻: strong field, low spin, diamagnetic
Result
vs. [Fe(H₂O)₆]²⁺: weak field, high spin, paramagnetic
Common Mistakes to Avoid
- ✕Confusing high vs. low spin
- ✕Not applying to correct geometry
Frequently Asked Questions
Why does color depend on coordination?
Different ligand fields cause different d-orbital splittings; visible light absorption matches energy gaps.
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