Answered: 40 20 100 80 PPM 140 120 60 Which of…

40 20 100 80 PPM 140 120 60 Which of the following structures matches the 13C-NMR spectum provided above? CH3 D) A) B) H3C CH2 H. CH3 H. CH H-Cc H C, C H3C H. H. H H. C H. CH3 138.4 I I 21.3

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter12: Nuclear Magnetic Resonance Spectroscopy

Section: Chapter Questions

Problem 3Q

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Concept explainers

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.

Question

8 of 15
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140
80
PPM
60
40
120
100
Which of the following structures matches the 13C-NMR spectum provided above?
CH3
O=C
B)
C)
D)
A)
H3C-
CH2
HC
H.
C'
H.
H.
C.
C
H3C
H.
H-Cċ.
H.
H.
H.
CH3
OA
B.
CIC
CH
20
21.3

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