Chapter 10, Problem 10C.6P

Interpretation Introduction

Interpretation:

Whether a photon induced transition allowed from ${\text{A}}_{\text{1g}}$ ground stated to ${\text{E}}_{\text{u}}$ excited state or not has to be stated.  the explanation for the corresponding answer has to be stated.

Concept introduction:

The group of symmetry operations of which at least one point is kept fixed is called point group.  The symmetry operations can be identity, rotation, reflection, inversion and improper rotation.  The selection rules for molecular transitions can be made on the basis of group theory by knowing the symmetry species of the wavefunctions.  The intensity of transition depends on the electric transition dipole moment.