Problem: How many unpaired electrons would you expect for the following complex ions?1. [Cr(CN)6]4−2. [MnF6]4−3. [Ru(en)3]2+

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FREE Expert Solution

We have to determine the number of unpaired electrons in each of the given complexes.

The number of unpaired electrons in a complex can be determined through:

  1. Calculating the oxidation number of metal. This gives the number of electrons in the d orbital.
  2. Finding out whether the ligand attached to the metal is a strong-field or a weak-field ligand.
  3. Filling the d electrons of the metal into the split d orbitals to find out how many are unpaired.


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Problem Details

How many unpaired electrons would you expect for the following complex ions?

1. [Cr(CN)6]4−

2. [MnF6]4−

3. [Ru(en)3]2+