Chapter 13, Problem 13.29P

Interpretation Introduction

Interpretation:

The changes in the NMR spectrum are to be stated if a sample of $\text{1-bromo-1, 1, 2-trichloroethane}$ is cooled enough that rotation about the carbon-carbon bond becomes slow on the NMR time scale.

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. Tetramethylsilane (TMS) is taken as reference.