Chapter 11, Problem 11.9P

(a)

Interpretation Introduction

Interpretation:

Given Vibration–rotation transitions of ${}^1{H}^{19}F$ in the infrared spectrum has to be assigned.

Concept Introduction:

Wavenumber originated for the absorption line in the P branch is given,

  ${\stackrel{\sim }{\nu }}_J=\stackrel{\sim }{\nu }-\text{ 2}\stackrel{\sim }{\text{B}}J$

Wavenumber originated for the absorption line in the R branch is given,

  ${\stackrel{\sim }{\nu }}_J=\stackrel{\sim }{\nu }\text{ + 2}\stackrel{\sim }{\text{B}}\left(J+1\right)$

(b)

Interpretation Introduction

Interpretation:

Bond length of ${}^1{H}^{19}F$ has to be determined.

Concept Introduction:

Bond length is the distance between the nuclei in a bond and it is related to the sum of the covalent radii at the bonded atoms.