Chapter 11, Problem 11C.12P

Interpretation Introduction

Interpretation:

The rotational quantum number for the given wave numbers has to be assigned.  The values of rotational constant ${\tilde{B}}_0$ and ${\tilde{B}}_1$ by using method of combination differences have to be calculated.

Concept introduction:

The internal mode of vibration of molecule leads to a periodic change in the internal internuclear separation of a molecule. Due to this change, the molecules are considered as harmonic oscillators. The strength of a bond in a bond is measured by force constant. The force constant of a molecule is related to the effective mass and vibrational frequency.  The vibrational energy of a molecule is given by the equation as shown below.

  $E_{\nu }=\left(\nu +\frac{1}{2}\right)\hslash \omega$.