Uses of Crystal Field Theory

1. Crystal field theory provides a basis of understanding and predicting the variations in magnetic moments with temperature as well as detailed magnetic properties of certain complexes.
2. While valence bond theory predicts magnetic behavior up to the point of indicating the number of unpaired electrons crustal field theory gives the detailed explanation of magnetic properties.
3. Crystal field theory also makes possible a clearer understanding of certain stereo chemical, thermodynamic and kinetic features of complex formation.
4. Most importantly, it gives an idea of the allowed d-d transitions which necessarily involve excited energy states and hence depend on the d-orbital splitting.