Step 1: Calculate the Index of Hydrogen Deficiency (IHD).Step 2: Use IR to determine obvious functional groups.Step 3: Use 1H-NMR to determine structural details. Step 4: Confirm the final structure using 13C-NMR. Find and draw the structure and give supporting data. 4) C„H,,013C NMRIRppmLOD200.39137.19132.83128.56128.0638.3026.5122.5113.954800300020001000MAVENUMBERI -l20018016014012010080604020CDS-04-808pom1Η NMRAssign. Shift(ppm)ITA7.957.51C7.472.95E1.72F1.41G0.96TMS223CHCI,2Impurity2765431

To calculate the index of hydrogen deficiency, interpret the IR spectrum and to conclude the…

Step 1: Calculate the Index of Hydrogen Deficiency (IHD). Step 2: Use IR to determine obvious functional groups. Step 3: Use 1H-NMR to determine structural details. Step 4: Confirm the final structure using 13C-NMR. Find and draw the structure and give supporting data.

Step 1: Calculate the Index of Hydrogen Deficiency (IHD). Step 2: Use IR to determine obvious functional groups. Step 3: Use 1H-NMR to determine structural details. Step 4: Confirm the final structure using 13C-NMR. Find and draw the structure and give supporting data.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter19: Nuclear Magnetic Resonance Spectroscopy

Section: Chapter Questions

Problem 19.13QAP

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Concept explainers

NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.

Question

Step 1: Calculate the Index of Hydrogen Deficiency (IHD).

Step 2: Use IR to determine obvious functional groups.

Step 3: Use 1H-NMR to determine structural details.

Step 4: Confirm the final structure using 13C-NMR.

Find and draw the structure and give supporting data.

4) C„H,,0
13C NMR
IR
ppm
LOD
200.39
137.19
132.83
128.56
128.06
38.30
26.51
22.51
13.95
4800
3000
2000
1000
MAVENUMBERI -l
200
180
160
140
120
100
80
60
40
20
CDS-04-808
pom
1Η NMR
Assign. Shift(ppm)
IT
A
7.95
7.51
C
7.47
2.95
E
1.72
F
1.41
G
0.96
TMS
2
2
3
CHCI,
2
Impurity
2
7
6
5
4
3
1

Definition Definition Group of atoms that shape the chemical characteristics of a molecule. The behavior of a functional group is uniform in undergoing comparable chemical reactions, regardless of the other constituents of the molecule. Functional groups aid in the classification and anticipation of reactivity of organic molecules.

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