Arrange the following Cobalt complexes in the order of increasing Crystal Field Stabilization Energy (CFSE) value.

Complexes: ${[C o F_{6}]}^{3 -}, {[C o {(H_{2} O)}_{6}]}^{2 +}, {[C o {(N H_{3})}_{6}]}^{3 +} a n d {[C o {(e n)}_{3}]}^{3 +}$

A B C D

Choose the correct option:

Option 1 - B < A < C < D

Option 2 - A

Option 3 - B < C < D < A

Option 4 - C < D

4 Views|Posted 8 months ago

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Answered by

Alok Kumar Singh | Contributor-Level 10

8 months ago

Correct Option - 1

Detailed Solution:

CFSE $\propto$ strength of ligand

And order of strength of ligand is

en > NH₃ > H₂O > F^-

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Chemistry Coordination Compounds 2025

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Arrange the following Cobalt complexes in the order of increasing Crystal Field Stabilization Energy (CFSE) value. Complexes: [ C o F 6 ] 3 − , [ C o ( H 2 O ) 6 ] 2 + , [ C o ( N H 3 ) 6 ] 3 + a n d [ C o ( e n ) 3 ] 3 + A B C D Choose the correct option:

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