Question:
The Crystal Field Stabilisation Energy (CFSE) for $[CoCl_6]^{4-}$ is $18000\, cm^{-1}$. The CFSE for $[CoCl_4]^{2-}$ will be-
The Crystal Field Stabilisation Energy (CFSE) for $[CoCl_6]^{4-}$ is $18000\, cm^{-1}$. The CFSE for $[CoCl_4]^{2-}$ will be-
Updated On: Apr 18, 2024
- $6000\, cm^{-1}$
- $16000\, cm^{-1}$
- $18000\, cm^{-1}$
- $8000 \,cm^{-1}$
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The Correct Option is D
Solution and Explanation
$\Delta_{\text{tetrahedral}} = \frac{4}{9} \times \Delta_{\text{octahedral}}$
$ = \frac{4}{9} \times 18000$
$ = 8000 \,cm^{-1}$
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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.