Question

The energies of $d_{xy}$ and $d_{z^2}$
orbials in octahedral and tetrahedral transition metal complexes are such that :

• A. $E\left(d_{xy}\right)>E\left(d_{z^2}\right)$ in both tetrahedral and octahedral complexes
• B. $E\left(d_{xy}\right)<E\left(d_{z^2}\right)$ in both tetrahedral and octahedral complexea
• C. $E\left(d_{xy}\right)>E\left(d_{z^2}\right)$ In tetrahedral a but $E\left(d_{xy}\right)<E\left(d_{z^2}\right)$ in octahedral complexes
• D. $E\left(d_{xy}\right)<E\left(d_{z^2}\right)$ in tetrahedral a but $E\left(d_{xy}\right)<E\left(d_{z^2}\right)$ in octahedral complexes

Answer 1

The correct option is C $E\left(d_{xy}\right)>E\left(d_{z^2}\right)$ In tetrahedral a but $E\left(d_{xy}\right)<E\left(d_{z^2}\right)$ in octahedral complexes

The octahedral and tetrahedral splitting of d orbital is given below:

Hence, option (c) is correct.