Question

write about crystal field theory ?

don't copy ​

Answer 1

Answer:

Crystal field theory (CFT) describes the breaking of orbital degeneracy in transition metal complexes due to the presence of ligands. CFT qualitatively describes the strength of the metal-ligand bonds. Based on the strength of the metal-ligand bonds, the energy of the system is altered. This may lead to a change in magnetic properties as well as color. This theory was developed by Hans Bethe and John Hasbrouck van Vleck

Answer 2

Explanation:

Crystal Field theory :

• According to Crystal Field theory the central metal is placed in the electric field of ligand then the Interaction the between the central metal ion and the legend is purely electrostatic force of attraction.

$\implies$ here we assume metal ion to be point charge and legend assume to be a dipole.

$\implies$ The degenerousy of five (M - 1)d orbitals gets broken in the presence of electric field .

$\implies$ Due to this the D-orbitals gets splitted into multiple energy levels .

$\implies$ CFT is very useful in finding out the nature of central metal and the nature of ligand.