Chapter 10, Problem 10.70QP

Interpretation Introduction

Interpretation: The hybridisation of central O atom in O3 has to be given; also, the bonding in ${\text{O}}_{\text{3}}$ in terms of delocalized molecular orbitals has to be described.

Concept Introduction: Molecular orbitals are formed by the combination of the atomic orbitals of the atoms in the molecule.  The properties of the newly formed molecular orbital will be different from their individual atomic orbitals.  In molecular orbital theory, electrons shared by atoms in a molecule reside in the molecular orbitals.

Delocalized molecular orbitals are extended over two or more atoms, these are not confined to adjacent bonding atoms.  Therefore, the electrons are free to move around the entire molecule.

The structures that arise due to delocalization of electrons or charges is called as resonance structures or canonical structures.  If a species can be represented in resonance structures, the $\pi$ bonds of the species are delocalized.

To Discuss: The hybridisation of central $\text{O}$ atom in ${\text{O}}_{\text{3}}$ and also the bonding in ${\text{O}}_{\text{3}}$ in terms of delocalized molecular orbitals.