The paramagnetic octahedral complex, [CoF6]
3– uses
outer orbital (4d ) in hybridisation (sp
3d
2) It is thus called outer orbital
or high spin or spin free complex Thus:
In tetrahedral complexes
one s and three p orbitals
are hybridised to form four
equivalent orbitals oriented
tetrahedrally This is ill-
ustrated below for [NiCl4]
2-