Chapter 10.6, Problem 13P

Interpretation Introduction

Interpretation:

The distinguishing mass spectra for the given molecules have to be interpreted. .

Concept Introduction:

Mass spectroscopy: It is a form of spectroscopic technique which is used for the elucidation of the molecular formula and molecular weight of the compound, depending upon the mass of the molecule.

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

Molecular ion peak${\text{(M)}}^{\text{+}·}$: It is defined as the heaviest peak in the IR spectrum of the molecule which represents the largest molecular ion in the given molecule with greater m/z value.

Mc Lafferty Rearrangement: This rearrangement can occur in ketones, aldehydes and esters.

In this rearrangement a radical center in molecular ion derived from a lone pair or pi-bond removes hydrogen from the Gamma position ($\gamma$) a pi bond formed the $\alpha and\beta$ position and the bond between the $\alpha and\beta$ position is broken.