Concept explainers
Interpretation:
The number of carbon atoms present in the compound that will produce the mass spectrum shown is to be determined.
Concept introduction:
In a mass spectrometer, the molecules of the compound are bombarded with high energy electrons. This generally results in one electron from the molecule being knocked out. The resulting ion is a radical ion with an odd number of electrons, called the molecular ion. Since the mass of an electron is negligible, the mass of the molecule and the molecular ion are essentially the same.
The molecular ion is a high energy species and breaks up into a number of fragments, one of which carries the charge. Another source of fragmentation is the bombarding electrons themselves. These electrons often have energies sufficient to not just knock out an electron but also enough to break bonds.
The only species detected in the mass spectrometer are the charged species, and their separation is based on the
The mass spectrum shows the distribution of the relative abundance of various ion fragments as a function of their
This means the
The number of carbon atoms in a molecule can be estimated on the basis of the relative abundances of the
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Check out a sample textbook solutionChapter 16 Solutions
Organic Chemistry: Principles and Mechanisms (Second Edition)
- Which of the highlighted carbon atoms in each attached molecule absorbs farther downfield ?arrow_forwardUsing the following spectra and other information provided, identify the compounds, and all pertinent peaks are assigned in the spectra (correct compound, labeling proton spectrum, labeling carbon spectrum) Label the peaks on the spectrum and place the structure of the compound in the box on the right side of the spectrum.arrow_forwardIdentify the compound that gives the mass spectrum and infrared spectrum shown here.arrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage LearningOrganic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning