EBK ORGANIC CHEMISTRY
EBK ORGANIC CHEMISTRY
6th Edition
ISBN: 8220103151757
Author: LOUDON
Publisher: MAC HIGHER
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Chapter 16, Problem 16.7P
Interpretation Introduction

(a)

Interpretation:

The structure of the compound is to be drawn with the help of details obtained through the NMR spectra.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

The number of NMR signal in a compound is equal to the number of chemically non-equivalent protons present in that compound. The more the shielded proton lesser will be its chemical shift value and the corresponding signal will be produced at the right-hand side or lower frequency region or vice versa.

Interpretation Introduction

(b)

Interpretation:

The structure of the compound is to be given with the help of details obtained through the NMR spectra.

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 depended upon its surrounded protons. Tetramethylsilane is taken as reference. Also, the spacing between split lines of NMR spectra is known as coupling constant.

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