Chapter 11, Problem 11C.9P

Interpretation Introduction

Interpretation:

The value of $\tilde{v}$ and $x_{\text{e}}\tilde{v}$ for the $\text{CO}$ molecules has to be stated from the corresponding anharmonic oscillator.

Concept introduction:

The complex vibrations exhibit by the polyatomic molecule is known as normal modes of vibrations.  The vibrational modes of a molecule are IR or Raman active.  If a molecule has a centre of symmetry, then the modes which are IR-active will be Raman inactive and the modes that are IR-inactive will be Raman active.  The total number of vibrational degrees of freedom for the nonlinear molecule is represented by $3N-6$.