Which of the following are true about the energy of the given d-orbitals of a tetrahedral complex? Choose the correct answer from the options given below :
- A, B and D only
- A and B only
- B and D only
- B, C and D only
Answer
(1) A, B and D only
Solution
In a tetrahedral complex the ligands approach between the axes, so the splitting is the reverse of the octahedral case:
t2 set ( dxy, dyz, dxz) — higher energy, degenerate
e set ( dx2-y2, dz2) — lower energy, degenerate
A. dxy = dxz > dx2-y2 ⇒ true
B. dxy = dyz > dz2 ⇒ true
C. dx2-y2 and dz2 are degenerate and both lie below dxz ⇒ false
D. dx2-y2 = dz2 < dxz ⇒ true
∴ A, B and D only
Answer: (1)