How many unique 13C NMR signals exist in the spectrum for the following compound? ...

Question:

How many unique 13C NMR signals exist in the spectrum for the following compound?

4-methylpent-1-ene

{eq}^{13}C {/eq}NMR

Carbon-13 nuclear magnetic resonance spectroscopy is a type of NMR spectroscopy. It identifies the carbon atom in a compound. Carbon-13 is an isotope of carbon. Its natural abundance is low that is 1.1%. Carbon-12 is not detectable as its I value is zero i.e. net spin is zero. The chemical shift reference solution for carbon-13 NMR spectroscopy is tetramethylsilane (TMS). TMS is used as a reference as it produces one signal for carbon in carbon-13 NMR and one signal in proton NMR for hydrogen, it is less toxic and easily volatile.

Answer and Explanation:

Number of {eq}^{13}C {/eq} NMR signals in compound 4-methylpent-1-ene is 5.

Structure of 4-methylpent-1-ene is

At carbon 4 both methyl groups...

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Learn more about this topic:

Nuclear Magnetic Resonance Spectroscopy: C-13 vs 1H
Nuclear Magnetic Resonance Spectroscopy: C-13 vs 1H

from AQA A-Level Chemistry: Practice and Study Guide

Chapter 17 / Lesson 2
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