Tamilnadu BoardEnglish MediumSTD 12ChemistryCoordination Chemistry3 Marks
Question
What is crystal field splitting energy?
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Answer
1. In an octahedral complex, the d-orbitals of the central metal ion divide into two sets of different energies. The separation in energy is the crystal field splitting energy.
2. The $d$-orbitals lying along the axes $d x^2, d y^2$ and $d z^2$ orbitals will experience strong repulsion and raise in energy to a greater extent than the orbitals with lobes directed between the axes $\left( d _{ xy }, d _{ yz }\right.$ and $d _{ zx }$ ). Thus the degenerate d -orbitals now split into two sets and the process is called crystal filled splitting.
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