Chapter 13, Problem 13.42E

Interpretation Introduction

Interpretation:

The $12\times 12$ matrices that specify the change in atomic coordinates of ${\text{NH}}_3$ upon operation of the $E$ symmetry operation and any $\sigma$ symmetry operation are 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.