Question

Which of the following statement(s) is/are true for crystal field splitting of tetrahedral complex?

• A. $d_{xy},d_{yz},d_{xz}$ have higher energy than ​$d_{x^2-y^2},d_{z^2}$
• B. All $d_{xy},d_{yz},d_{xz}$ orbitals have same energy
• C. ​$d_{x^2-y^2},d_{z^2}$ orbitals located near to ligand approach direction
• D. $d_{x^2-y^2}$ has higher energy than $d_{z^2}$ orbital

Answer 1

Answer: (A), (B)

All $d_{xy},d_{yz},d_{xz}$ orbitals have same energy

In tetrahedral complex formation, $d_{xy},d_{yz},d_{xz}$ orbitals are near to ligands approching direction so they are repelled more and raise in energy in crystal field of ligand. And $d_{x^2-y^2},d_{z^2}$ orbitals are away from ligand approaching direction so they are lower in energy than $t_2$ orbitals.

Hence, statements (a) and (b) are true.