Chapter 13, Problem 13.60AP

Interpretation Introduction

Interpretation:

The compounds A and B are to be differentiated using NMR technique.

Concept introduction:

Many nuclei and electrons have spin. Due to this spin magnetic moment arises. The energy of this magnetic moment depends on the orientation of the applied magnetic field. In NMR spectroscopy, every nucleus has a spin. There is an angular momentum related to the spin. The difference between its resonance frequency and that of the reference standard is known as the chemical shift of a nucleus. The chemical shift value depends upon its surrounding protons. Tetramethylsilane is taken as reference. Also, the spacing between splitted lines of NMR spectra is known as coupling constant. The angle between two intersected planes is known as dihedral angle.