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- Which molecule corresponds to the following NMR spectrum? 3H singlet 3H 2H triplet quartet 4H multiplet PPM A: B: D: O A O D O BPredict the number of signals in the 1H-NMR spectrum of each isomer.1Compound 1 has molecular formula C7H16. It shows three signals in the 1H-NMR spectrum, one at 0.85 ppm, one at 1.02 ppm, and one at 1.62 ppm. The relative integrals of these three signals are 6, 1, and 1, respectively. Compound 2 has molecular formula C7H14. It shows three signals in the 1H-NMR spectrum, one at 0.98 ppm, one at 1.36 ppm, and one at 1.55 ppm. The relative integrals of these three signals are 3, 2, and 2, respectively. Propose structures for compounds 1 and 2, explaining how you reach your conclusion.
- The number of peaks in the ¹H-NMR spectrum of a com-pound depends on the number of different kinds (environments)of H atoms. How many peaks appear in the spectrum of each iso-mer of C₄H₁₀and of C₅H₁₂A'H NMR spectrum is shown for a molecule with the molecular formula of CeH9Br. Draw the structure that best fits this data.Refer to the NMR spectrum below. How many total H's are there in this compound? 2H 3H 2H 11 10 8 5 4 3. 2 1 ppm HSP-02-073
- The following NMR spectra were obtained from a compound with the molecular formula C4H6O. Use this information to predict its structure.At room temperature, N,N-dimethylformamide, HCON(CH3)2, has three "H NMR signals, appearing at 2.9, 3.0, and 8.0 ppm. As the temperature is increased, the two signals at 2.9 and 3.0 ppm merge into one signal. Explain. Hint: Consider the resonance structures of the compound.5) Draw the possible structure for: C10H13CI NMR= 7.2 doublet of doublets (4H) 2.6 Hextet (1H) 1.6 quintet (2H) 1.6 doublet (3H) 1.1 triplet (3H)