Question:
Which of the following configuration can undergo distortion ?
Which of the following configuration can undergo distortion ?
Updated On: Jun 14, 2022
- $ t_{2g}\,^{6}e^{1}_{g} $
- $ t_{2g}\,^{6}e^{2}_{g} $
- $ t_{2g}\,^{6}e^{4}_{g} $
- $ t_{2g}\,^{6}e^{0}_{g} $
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The Correct Option is A
Solution and Explanation
According to Jahn-Teller theorem, any non-linear molecular system in a degenerate electronic state is unstable and readily undergoes distortion to give a system of lower symmetry and lower energy by removing the degeneracy. This effect is more important for odd number occupancy of the eg. level. Thus, $t_{2g}^{6} e_{g}^{1}$ readily undergoes distortion
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Concepts Used:
Coordination Compounds
A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.
Coordination entity:
A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.
Ligands:
A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.