Chapter 16, Problem 16.59P

Interpretation Introduction

Interpretation:

Whether it is possible for protons that produce a sextet in a $\text{H}$ NMR spectrum to be coupled to protons that are all equivalent to each other is to be explained.

Concept introduction:

Each chemically distinct proton generates a signal in proton nmr spectroscopy. The signal may be modified, split into a number of lines, by nearby protons. Typically only protons three bonds away produce distinct splitting of the signal of interest. The number of lines, called multiplicity, into which the signal is split, equals $\text{n+1}$, where n is the number of protons three bonds away.