Concept explainers
Interpretation:
The prominent IR absorptions and mass spectral peaks expected for the compound given are to be stated.
Concept introduction:
In the mass spectrum of organic compounds, normally peaks due to Mc Lafferty rearrangement and α cleavage are generally visible. In Mc Lafferty rearrangement, aldehydes and ketones that have hydrogens on the γ carbons transfer the hydrogen on the carbon to the carbonyl oxygen and the bond between the α and β carbons is broken to yield an
To state:
The prominent IR absorptions and mass spectral peaks expected for the compound given.
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Organic Chemistry
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- Calculate the IHD of C7H6XNO and identify the important peaks in the following MS spectral data and draw the structure of the important peaks in the following MS spectral data.arrow_forward30. A compound (C7H₁40) has a strong IR absorption at 1715cm¹. The ¹HNMR spectrum has two signals at d 1.10 (doublet) and d 2.77 (multiplet), ratio 6:1. The 13CNMR spectrum shows three lines at d 218, 39, and 18. Which one of the following structures best fits with this spectroscopic data? Not.e: d means delta C B A D О С CHOarrow_forwardPropose possible structures consistent with each set of data. Assume each compound has an sp3 hybridized C – H absorption in its IR spectrum, and that other major IR absorptions above 1500 cm are listed. a. a compound having a molecular ion at 72 and an absorption in its IR spectrum at 1725 cm−1 b. a compound having a molecular ion at 55 and an absorption in its IR spectrum at ~2250 cm−1 c. a compound having a molecular ion of 74 and an absorption in its IR spectrum at 3600–3200 cm−1arrow_forward
- Determine the molecular structure of the compound in the IR spectrum data, 1H NMR ; 13C NMR and MS, explain it for each picture.arrow_forwardA compound displays a prominent peak at 3400 cm¹ in its IR spectrum. The mass spectrum has a molecular ion with m/z of 74. The base peak is at m/z = 45. Draw a structure that best fits this data. Drawing I Atoms andarrow_forwardA compond has a molecular ion peak at M/Z = 72 in the mass spectrum. It has a sharp peak around 1730cm-1 in the IR. What is the molecular formula of the compound and how many unsaturation is present in this compound?arrow_forward
- A compound displays a sharp doublet at 3400 cm-1 in its IR spectrum. The mass spectrum has a molecular ion with m/z = 115 and a base peak of m/z=72. Draw a structure that best fits this data.arrow_forwardThis is the 13C spectrum for an X compound with molecular formula C7H12O4. The substance is not soluble in NaHCO3 and has a stretch at 1740cm-1 on the IR spectrum. What is the structure of X?arrow_forwardYou are provided an unknown sample with the molecular formula C8H9NO. After running the IR, you obtain the following spectra. Name and draw the structure of the compoundarrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning