Which d orbitals are involved in sp3d2 and d2sp3 hybridization respectively?
sp3d2 or d2sp3 are hybridisation for the octahedral geometry.
In octahedron, the bonds are formed parallel to the x, y, and z-axes, hence dx2-dy2 and dz2 will be used to form the hybrid orbitals.
|Coordination number||Type of hybridization||Distribution of hybrid orbitals in space||Types of d orbitals|
|6||sp3d2 (nd orbitals are involved; outer orbital complex or high-spin or spin-free complex)||Octahedral||dx2-dy2 and dz2|
|6||d2sp3 [(n − 1)d orbitals are involved; inner orbital complex or low-spin or spin-paired complex]||Octahedral||dx2-dy2 and dz2|