π backbonding, also called π backdonation, is a concept from chemistry in which electrons move from an atomic orbital on one atom to an appropriate symmetry antibonding orbital on a π-acceptor ligand.
Electrons from the metal are used to bond to the ligand, in the process relieving the metal of excess negative charge.
Good Luck!!
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile