Chapter 14, Problem 14.49E

Interpretation Introduction

Interpretation:

The predictable number of IR-active vibrational modes of ${\text{CH}}_{\text{3}}\text{D}$, which is formed by the replacement of one hydrogen atom of methane is to be stated.

Concept introduction:

A molecule is vibrated in number of methods. Every method is known as the mode of vibration. The modes of vibration may be Raman or IR active. In order to observe a mode in the IR spectrum, the permanent dipole moment must be changed.