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Help me please, - Coordination compounds: - NEET

What is the correct electronic configuration of the central atom in K_6[Fe(CN)_6] based on crystal field theory?

  • Option 1)

    t_{2g}^4e_{g}^2

  • Option 2)

    t_{2g}^6e_{g}^0

  • Option 3)

    e^3t_2^3

  • Option 4)

    e^4t_2^2

Answers (1)
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Splitting occurs as follows for octahedral

For Fe2+ (d6), electron distribution occurs as follows:

\therefore t^6_{2g}e^0_g is the correct distribution.

Option 2 is correct.

 


Option 1)

t_{2g}^4e_{g}^2

Option 2)

t_{2g}^6e_{g}^0

Option 3)

e^3t_2^3

Option 4)

e^4t_2^2

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