Chapter 15.3, Problem 1CC

Interpretation Introduction

Interpretation: For the given set of compounds the highlighted bonds should be arranged in the increasing order of their wavenumber.

Concept Introduction:

IR spectral studies: It is a spectroscopic technique which is used to determine the functional groups present in the given compound sample by absorbing frequency in particular range with respect to the group present in the given sample.

Wavenumber: It is defined as the number of waves in one centimeter. The wavenumber indicates the location of each signal with respect to the functional group in the molecule and its unit is ${\text{cm}}^{\text{-1}}$.

Molecular formula: It represents the types of atoms with their total number present in a given molecule.

The Hydrogen Deficiency Index (HDI): It is used to measure the number of degrees of unsaturation (double and triple bonds) present in a given molecule. It is determined by using the formula $\text{HDI}\text{=}\frac{\text{1}}{\text{2}}\text{[(2}\times \text{No}\text{. of Carbon atoms)+2+(No}\text{. of Nitrogen atoms)-(No}\text{. of Hydrogen atoms)-(No}\text{. of halogens)]}$