1. Tardigrade
  2. Question
  3. Chemistry
  4. The hybridisation states of [Ni(CO)4] , [Ni(CN)4]2- and [NiCl4]2- species are respectively

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The hybridisation states of $ [Ni(CO)_4] $ , $ [Ni(CN)_4]^{2-} $ and $ [NiCl_4]^{2-} $ species are respectively

AMUAMU 2011Coordination Compounds

Solution:

In the formation of $[Ni(CO)_4]$, oxidation state of $Ni$ is $O$ and its electronic configuration is $[Ar] \,3d^8\,4s^2$.
Hence, we have
image
In $[Ni(CN)_4]^{2-}$, $Ni$ is in $+2$ oxidation state and $CN^-$ is a strong ligand and as it approaches the metal ion, the electrons must pair up.
image
In $[NiCl_4]^{2-}, Cl^-$ provides a weak field ligand. It is therefore, unable to pair up the unpaired electrons of the $3d$ orbitals.
image