is back bonding only observed in p-p(sigma or pi) overlap or may possible in d-d as well give examples of back bonding

- Dear Student,

Backbonding is defined as the donation of electrons to the atomic orbital of an atom or ligand from the atomic orbital of another atom.

When there is overlap between p and p orbitals of different atoms, p-p backbonding is observed.
When there is overlap between d and d orbitals of different atoms, d-d backbonding is observed.
When there is overlap between d and p orbitals of different atoms, d-p backbonding is observed.

Examples are:

p-p backbonding:   BF3 - Boron trifluoride

Image result for bf3 back bonding

d-p backbonding : Metal Ligand bonding with a ligand like CO , electron donor d orbital of metal with electron acceptor p-orbital of C

Image result for backbonding


d-d backbonding : Complexes of phosphines like triphenylphosphines which act as acceptor ligand with late transition metals , d orbital of phosphorus overlaps with d orbital of the metal

Image result for backbonding 


Regards


 

  • 1
What are you looking for?