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.
Want to see the full answer?
Check out a sample textbook solutionChapter 19 Solutions
Organic Chemistry
- An compound that has a molecular formula of C5H11NO, has the below 1H NMR spectrum which is showen in the picture. There is a strong single peaked absorption at 3400 and 1710 cm-1and there are couple of mdium peaks between 2800 and 3000 cm-1. Which of the options below is more consistent with this spectrum?arrow_forward22. Propose a molecular formula that fits the given data: A compound that absorbs IR radiation at 1720 cm−1 and exhibits a molecular ion peak at m/z = 70.arrow_forwardC8H8O produces an IR spectrum with 3063, 1686, 1646 cm signals. HNMR is a singlet at 2.6ppm (3H), and multiplet at 7.5 (5H). What is the productarrow_forward
- A molecule produces an IR spectrum with key peaks at approximately 3300 and 2100 cm⁻¹. The mass spectrum has a molecular ion with a m/z = 68, and major fragment with m/z of 39. Draw a structure that best fits this data.arrow_forwardIdentify and draw the structure of the important peaks in the MS spectral data of C7H5BrO3 given below.arrow_forwardCalculate 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_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_forwardcompound with the molecular formula C7H9N exhibits IR bands at 3450 cm-1 (medium, doublet), and 855 cm-1 (strong) and shows the following major mass spectral signals (m/z): 106 (base); 107 (M+, about 70% of base), 91 (40% of base), and 77 (about 20% of base). Deduce a reasonable structure from this data.arrow_forwardCan the following compounds be distinguished using infrared (IR) spectroscopy? Explain the answer.arrow_forward