Question

Why pi complexes are known for transition elements only?

Answer 1

Answer:

pi complexes are known only for transition elements why ? ... The transition metals form Π complexes because they have t2g orbitals of correct symmetry which allows them to overlap with the vacant Π orbitals of these ligands, forming Π bonds. This bonding is known as back bonding.

Answer 2

Answer:

The transition metals form Π complexes because they have t2g orbitals of correct symmetry which allows them to overlap with the vacant Π orbitals of these ligands, forming Π bonds.

Hence, the presence of d-orbitals of proper symmetry in transition metals allows the formation of p complexes.