Explain the geometry and hybridisation of [Ni(CN)4]2-????
In [Ni(CN)4]2-, Ni is in +2 oxidation state.
Orbital configuration:
.bmp)
In presence of CN- ligands, pairing of 3d electrons takes place to give following configuration:
.bmp)
The four vacant orbitals; one 3d, one 4s and two 4p orbitals hydrize to give four dsp2 hybrid orbitals which are used by four CN- ions for bond formation.
.bmp)
Hence, [Ni(CN)4]2- has dsp2 hybridization and square planar geometry.
Orbital configuration:
In presence of CN- ligands, pairing of 3d electrons takes place to give following configuration:
The four vacant orbitals; one 3d, one 4s and two 4p orbitals hydrize to give four dsp2 hybrid orbitals which are used by four CN- ions for bond formation.
Hence, [Ni(CN)4]2- has dsp2 hybridization and square planar geometry.