10080H3C6040CH3H3C20H3C0.00.0153045607590m/zFigure 3. Positive ion mass spectrum of methyl acetate. Note that the peak with the greatestrelative intensity is not that of the parent ion fragment.Note in Figure 3. that the peaks corresponding to m/Z= 29 and 42 correspond to fragments whichresulted from more than a single bond-breaking event.Rel. Intensity0=U A low-intensity peak at m/Z = 31 can be seen in the mass spectrum of methyl acetate inFigure 3. Propose a fragment that could originate from methyl acetate and be responsiblefor this peak.

The mass spectrum of methyl acetate has a low intensity peak at m/z = 31. The fragment that is…

Answered: A low-intensity peak at m/Z = 31 can be…

A low-intensity peak at m/Z = 31 can be seen in the mass spectrum of methyl acetate in Figure 3. Propose a fragment that could originate from methyl acetate and be responsible for this peak.

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter14: Mass Spectrometry

Section: Chapter Questions

Problem 14.37P

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Concept explainers

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.

Question

100
80
H3C
60
40
CH3
H3C
20
H3C
0.0
0.0
15
30
45
60
75
90
m/z
Figure 3. Positive ion mass spectrum of methyl acetate. Note that the peak with the greatest
relative intensity is not that of the parent ion fragment.
Note in Figure 3. that the peaks corresponding to m/Z= 29 and 42 correspond to fragments which
resulted from more than a single bond-breaking event.
Rel. Intensity
0=U

A low-intensity peak at m/Z = 31 can be seen in the mass spectrum of methyl acetate in
Figure 3. Propose a fragment that could originate from methyl acetate and be responsible
for this peak.

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