Which of the following ions can form both low spin and high spin octahedral complexes? Ni2+,...

Which of the following ions can form both low spin and high spin octahedral complexes?

Ni2+, Sc3+, Cu2+, Co3+ Mn4+

I know that the correct answer is Co3+, but could you please explain why this is?

Expert Solution

The metal which has two different non degenerate electron configuration and it should follow Afbau, Hund's and Pauli exclusion principles to fill the electrons, will form both high spin and low spin octahedral complexes.

But for remaining, electronic configurations are same in both high and low spin complexes.

Explanation was given in attachment

queen_honey_blossom answered 2 years ago

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