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Crystal field stabilization energy for h...

Crystal field stabilization energy for high spin `d^4` octahedral complex is

A

`-1.8 Delta_0`

B

`-1.6 Delta_0 + P`

C

`-1.2 Delta_0`

D

`-0.6 Delta_0`

Text Solution

Verified by Experts

The correct Answer is:
D
`d^4` in high spin octahedral complex

CFSE =(-0.4 x + 0.6y)`Delta_0`
Where , x `to` electron in `t_(2g)` orbital
`y to ` electrons in `e_g` orbital
CFSE =`[0.6xx1] + [-0.4xx3] = -0.6 Delta_0`
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What is the crystal field stabilization energy for high spin d^6 octahedral complex?

The values of the crystal field stabilization energies for a high spin d^6 metal ion in octahedral and tetrahedral fields, respectively, are :

Knowledge Check

  • Crystal field stablisation energy for high spin d^(4) octahedral complex is :-

    A
    `-1.8 Delta_(0)`
    B
    `-0.6 Delta_(0)`
    C
    `-1.2 Delta_(0)`
    D
    `-1.6 +P`

  • The magnitude of crystal field stabilization energy (CFSE or Delta t) in tetrahedral complexes is considerably less than in octahedral field. This is because

    A
    There are four ligands instead of six so the ligand field is only 2/3 the size hence , the `Delta`t is only 2//3 the size
    B
    The direction of the orbitals does not coincide with the direction fo the ligands . This reduces the crystal field stabilisation energy `(Deltat)` by further 2/3
    C
    Both points (A) and (B) correct
    D
    Both points (A) and (B) are wrong .

  • The magnitude of crystal field stabilization energy (CFSE) in tetrahedral complexes is considerably less than in the octahedral field beause

    A
    There are only four ligands instead of six so the ligand field is only `2//3` the size hence the `Delta_(t)` is only `2//3` the size
    B
    The direction of the orbitals does not coincide with the direction of the ligands. This reduces the crystal field stabilization energy `Delta_(t)` by further `2//3` .
    C
    Both points (1) and (2) are correct
    D
    Both points (1) and (2) are wrong

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    The vlaue for crystal field stabilisation energy for an octahedral comlex, [CoCI_(6)]^(4-) is 18000 cm^(-1) The value of crystal field stabilisation energy for tetrahedral complex is

    What is crystal field stabilisation energy for high spin d^6 configuration for octahedral & tetrahedral complexes.

    The splitting diagram for square planar complexes is more complex than for octahedral and tetrahedral complexes and is shown below with the relative energies of each orbital. Which of the following set of de^(-) have same crystal field stabilisation energy value for tetrahedral complex neglecting pairing energy (P) : (P) d^(1), d^(6)" "(Q) d^(2), d^(7) (R ) d^(3), d^(8)" "(S) d^(4), d^(9) (T) d^(5), d^(10)

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    The magnitude of crystal stabilization energy (CFSE or Delta_(t)) in tetrahedral complexes is considerably less than in the octahedral field. Because

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