The MS and 13C NMR spectra for two constitutional isomers with 4 degrees of unsaturation are shown below. Determine the molecular structures of the two constitutional isomers. ISOMER AISOMER B100-10080-80-60-60-40 -40-MT. 14020-20-75100125255075100125m/zm/zm? pautas total2 peaks3 peales tolad2001801601401201008060402020018016014012010080604020CDS-00-007ppmCos-00-e86pmRelative IntensityRelative Intensity

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Answered: The MS and 13C NMR spectra for two…

The MS and 13C NMR spectra for two constitutional isomers with 4 degrees of unsaturation are shown below. Determine the molecular structures of the two constitutional isomers.

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter7: Atomic Structure And Periodicity

Section: Chapter Questions

Problem 35Q: Does the minimization of electron-electron repulsions correlate with Hund's rule?

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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

The MS and 13C NMR spectra for two constitutional isomers with 4 degrees of unsaturation are shown below. Determine the molecular structures of the two constitutional isomers.

ISOMER A
ISOMER B
100-
100
80-
80-
60-
60-
40 -
40-
MT. 140
20-
20-
75
100
125
25
50
75
100
125
m/z
m/z
m? pautas total
2 peaks
3 peales tolad
200
180
160
140
120
100
80
60
40
20
200
180
160
140
120
100
80
60
40
20
CDS-00-007
ppm
Cos-00-e86
pm
Relative Intensity
Relative Intensity

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