Answered: 3H 1H 2H 2H 2H 12 11 10 8 7 6 4 3 2 1…

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter2: Matter

Section2.2: Properties Of Matter

Problem 1RQ

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Question

Consider the following proton NMR spectrum. The compound producing it contains oxygen, and IR analysis shows that it has v(C=O). Integrations are given at each signal . Propose a structure and assign it consistent with the NMR information. (Assign=draw structure and label a,b,c etc, each H-type; then label spectrum to tell which signal is from which H-type.)

*See the second blue image for help.

3H
1H
2H 2H
2H
12
11
10
8
7
6
4
3
2
1
HSP-02-459
ppm
See over for the "experience of chemists".

Chemical Shift (ö)
13 12
10
9 8 7 6
5
3
2 1 0
TMS
CH; saturated
CH; satu rated
CH satu rated
CH-C-X
CH-C=
CH,C=0
CH-Aromatic
CH-S, N
НС
CH,O
H;C=
HC=
H-Aromatic
H-Heteroaromatie
RCHO
RCO,H
13 12 II 10 9 8
alcohol H's from 1 – 5, phenol H’s from 5 to 8
7 6
3
2 I 0
4.
%3D

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