. Low spin octahedral complexes of nickel are not known
Explain the following
(i) Low spin octahedral complexes of nickel are not known.
(ii) The -complexes are known for transition elements only.
(iii) CO is a stronger ligand than NH3 for many metals.
Compare the following complexes with respect to structural shapes of units, magnetic behaviour and hybrid orbitals involved in units
(i) [Ni(CN)4 ] 2-
(ii) [NiCl4 ] 2-
(iii) [CoFe6 ] 3-
[At. Nos,: Ni = 28; Co = 27]
(i) Ni in its atomic ionic state can not afford two vacant 3d orbitals hence d2 sp3 hybridisation is not possible