교과서 질문
In the mass spectrum of the following compounds, which is the tallest—the peak at m/z = 57 or the peak at m/z = 71?
a. 3-methylpentane
b. 2-methylpentane
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15. Analytical Techniques:IR, NMR, Mass Spect
Mass Spect:Fragmentation
Multiple Choice
Draw the most likely ion fragment of the molecule
A
B
C
D
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검증된 단계별 안내1
Identify the molecule: The molecule shown is chlorobenzene, which consists of a benzene ring with a chlorine atom attached.
Understand fragmentation: In mass spectrometry, fragmentation often occurs at the weakest bond, which in chlorobenzene is the C-Cl bond.
Consider the ionization process: When chlorobenzene is ionized, the chlorine atom can be removed, leaving behind a phenyl cation.
Draw the phenyl cation: The phenyl cation is represented by a benzene ring with a positive charge, indicating the loss of the chlorine atom.
Verify stability: The phenyl cation is a common fragment in mass spectrometry due to its relatively stable structure, making it a likely ion fragment.
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