Why P4O6 does not exhibit back bonding while P4O10 exhibits back bonding on apical P-O bonds ?
Dear student,
The terminal bond formed is pπ- dπ back bonding. The terminal P -O bonds in P4O10 are co-ordinate bonds formed by lateral overlap of full p-orbitals on oxygen with empty dπ orbitals on phosphorus. The lone pairs are donated by the phosphorus atoms (π back bonding). π back bonding or π back-donation is a concept in which the electrons move from an atomic orbital on one atom to a π* antibonding orbital on another atom or ligand.
The double bonds are not present in
Regards
The terminal bond formed is pπ- dπ back bonding. The terminal P -O bonds in P4O10 are co-ordinate bonds formed by lateral overlap of full p-orbitals on oxygen with empty dπ orbitals on phosphorus. The lone pairs are donated by the phosphorus atoms (π back bonding). π back bonding or π back-donation is a concept in which the electrons move from an atomic orbital on one atom to a π* antibonding orbital on another atom or ligand.
The double bonds are not present in
Regards