The high spin Fe⁴⁺ ion would show a Jahn-Teller distortion in an octahedral field.

Question

Quizplus · Accepted Answer

The high spin Fe⁴⁺ ion has an odd number of electrons and therefore exhibits strong electronic correlation. In an octahedral field, the degeneracy of the d orbitals splits such that the e_g orbitals become lower in energy than the t2g orbitals. This causes the electrons to preferentially occupy the lower energy e_g orbitals, leading to a Jahn-Teller distortion.

The High Spin Fe4+ Ion Would Show a Jahn-Teller Distortion

The High Spin Fe⁴⁺ Ion Would Show a Jahn-Teller Distortion