Propose the structure of the compound with the following data: C₂H₁1Br 8=2.15 ppm (quint, 2 H) 8=2.75 ppm (t, 2 H) 6-3.38 ppm (t, 2 H) 8=7.22 ppm (m, 5 H)
Propose the structure of the compound with the following data: C₂H₁1Br 8=2.15 ppm (quint, 2 H) 8=2.75 ppm (t, 2 H) 6-3.38 ppm (t, 2 H) 8=7.22 ppm (m, 5 H)
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:**Challenge:** Propose the structure of the compound with the following data:
**Chemical Formula:** C₉H₁₁Br
### Proton NMR Data:
- **δ = 2.15 ppm** (quintet, 2 H)
- **δ = 2.75 ppm** (triplet, 2 H)
- **δ = 3.38 ppm** (triplet, 2 H)
- **δ = 7.22 ppm** (multiplet, 5 H)
### Explanation:
- **δ (delta) Values:** These indicate the chemical shifts in parts per million (ppm) relative to a standard reference point, suggesting the environment of hydrogen atoms in the compound.
- **Multiplicity:**
- **Quintet (quint, 2 H):** Suggests coupling with four neighboring protons.
- **Triplet (t, 2 H):** Suggests coupling with two neighboring protons.
- **Multiplet (m, 5 H):** Likely arises from an aromatic ring, such as a phenyl group.
- **Proton Count (H):** Denotes the number of hydrogen atoms contributing to each signal, which helps deduce the structure and surroundings of the protons in the molecule.
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NMR spectroscopy is a very important tool for the determination of the structure of the organic compound.
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