Chapter 15, Problem 56P

Interpretation Introduction

Interpretation:

The compound with the molecular formula ${\text{C}}_{\text{7}}{\text{H}}_{\text{14}}\text{O}$ by the proton-coupled ${}^{\text{13}}\text{C NMR}$ has to be identified.

Concept introduction:

The signals in the spectrum of a compound are proportional to the number of carbons that are present in the different environment within the molecule.  The carbon which is present in the electron-rich environment shows a signal at a lower frequency and vice-versa.  Therefore, the carbons that are present nearest to the electron-withdrawing groups produce a high-frequency signal.

When a spectrometer is run in a proton-coupled mode, then the signals in ${}^{\text{13}}\text{C NMR}$ spectra is split by the protons attached to a particular carbon.