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Stability of Fully Filled and Half Filled Orbitals

Assertion:Low...

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Assertion:Low spin tetrahedral complexes are rarely observed. Reason:The orbital splitting energies are not sufficiently large to force pairing.

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Q. Assertion :In tetrahedral complexes low spin configurations are rarely observed. Reason:

Δ_{t} = (\frac{4}{9}) Δ_{0}

Q. Why are low spin tetrahedral complexes rarely observed?

Q. Assertion :Inner orbital complexes are low spin complexes. Reason: In low spin complexes, inner d-orbital (3d) is used in hybridisation.

Q. (a) What type of isomerism is shown by the complex

[C o (N H_{3})_{5} (S C N)]^{2 +}

[N i C l_{4}]^{2 +}

paramagnetic while

[N i (C N)_{4}]^{2 -}

is diamagnetic?
(Atomic number of

N i = 28

)
(c) Why are low spin tetrahedral complexes rarely observed?

Q. (a) What type of isomerism is shown by the complex

[C o (N H_{3})_{5} (S C N)]^{2 +}

[N i C l_{4}]^{2 -}

paramagnetic while

[N i (C N)_{4}]^{2 -}

is diamagnetic? (Atomic number of Ni = 28)
(c) Why are low spin tetrahedral complexes rarely observed?

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Stability of Fully Filled and Half Filled Orbitals

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