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Deduce the structure of [NiCi 4 ] 2- and [Ni(CN) 4 ] 2- considering the hybridization of the metal ion. Calculate the magnetic moment (spin only) of the species.

Deduce the structure of [NiCi4]2- and [Ni(CN)4]2- considering the hybridization of the metal ion. Calculate the magnetic moment (spin only) of the species.

Grade:10

1 Answers

Jitender Pal
askIITians Faculty 365 Points
7 years ago
Hello Student,
Please find the answer to your question
CI- is a weak ligand which is unable to pair the electrons of Ni2+. Therefore, here hybridization is sp3 and shape will be tetrahedral.
Electronic configuration of Ni+2 (No. of electrons = 26) in presence of CI­- ion, a weak ligand.
235-849_8989898.jpg
Magnetic moment of [NiCI4]2- = √2(2 + 2) = 2.82 BM On the other hand, CN- is a stong ligand which pairs up the electrons of Ni2+. Therefore, here hybridization is dsp2 and shape will be square planar.
Electronic configuration of Ni2+ in presence of CN- ion, a strong ligand.
235-224_78787.png
For structure of [Ni(CN)4]2- = √0(0 + 2) = 0.01 BM

Thanks
jitender
askIITians Faculty

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