Chapter 19.13, Problem 42CC

Interpretation Introduction

Interpretation:

The spectroscopic structure identification for given corresponding molecular formula should be draw and identified.

Concept Introduction:

Ni Reduction Reaction: The aldehyde and ketones in the presence of strong metal atoms (like Raney Ni) the carbonyl compound produced saturated alkanes. The keto group involves in the reduction process of Ni, this carbonyl group reducing to give the saturated aromatic (or) aliphatic hydrocarbons.

IR Spectra: This important tool of structure analysis different organic molecules and its functional groups. (or) To determine the functional groups present in the given organic compound sample by absorbing frequency in particular range with respect to the group present in the given sample.

Wavenumber (cm^-1): 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 ${\text{cm}}^{\text{-1}}$.

To find: The molecular formula for the given molecules (a and b)