16) The partial chemical structure and H NMR spectrum of 1-bromopropar Draw in the hydrogen atoms and label them with a subscript that corresponds to the labeled peaks in the ¹H NMR spectrum. Provide a brief rationale for your structural assignments. 11 10 9 HSP-00-184 8 7 6 Peak 1: 3.39 ppm 2H Triplet 5 4 3 ppm Rationale for peak assignments in structure: I Peak 3: 1.03 ppm 3H Triplet Peak 2: 1.87 ppm 2H Sextet 2 1 0 figner Draw in labeled hydrogen atoms (H₂, H₂, H3) and assign them to peaks 1-3 It is ² HS CI-C-C-C-H² H. thck Hz H³ Structure of 1-bromopropane

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**Transcript for Educational Website:**

**1H NMR Spectrum Analysis of 1-Bromopropane (C3H7Br)**

---

**Description:**

The partial chemical structure and 1H NMR spectrum of 1-bromopropane are shown. The task is to assign hydrogen atoms with subscripts (H1, H2, H3) corresponding to labeled peaks in the 1H NMR spectrum, with a rationale for peak assignments.

---

**1H NMR Spectrum Details:**

- **Peak 1:**
  - Chemical Shift: 3.39 ppm
  - Number of Hydrogens: 2H
  - Multiplicity: Triplet

- **Peak 2:**
  - Chemical Shift: 1.87 ppm
  - Number of Hydrogens: 2H
  - Multiplicity: Sextet

- **Peak 3:**
  - Chemical Shift: 1.03 ppm
  - Number of Hydrogens: 3H
  - Multiplicity: Triplet

**Structure of 1-Bromopropane:**

The structure is illustrated with labeled hydrogen atoms:
- **H1** is near the bromine atom.
- **H2** is in the middle position between H1 and H3.
- **H3** is at the terminal end away from the bromine.

**Rationale for Peak Assignments in Structure:**

By analyzing the chemical shifts and multiplicities, the peaks are assigned based on the environment of each hydrogen:
- Peak 1 (3.39 ppm, triplet, 2H) corresponds to the two hydrogens (H1) adjacent to the bromine.
- Peak 2 (1.87 ppm, sextet, 2H) corresponds to the two hydrogens (H2) in the middle position, influenced by adjacent groups.
- Peak 3 (1.03 ppm, triplet, 3H) corresponds to the three terminal methyl hydrogens (H3).

*Note:* The rationale is handwritten as: "1 figner Hchk."

This detailed analysis is essential for understanding the relationship between molecular structure and NMR spectral data.
Transcribed Image Text:**Transcript for Educational Website:** **1H NMR Spectrum Analysis of 1-Bromopropane (C3H7Br)** --- **Description:** The partial chemical structure and 1H NMR spectrum of 1-bromopropane are shown. The task is to assign hydrogen atoms with subscripts (H1, H2, H3) corresponding to labeled peaks in the 1H NMR spectrum, with a rationale for peak assignments. --- **1H NMR Spectrum Details:** - **Peak 1:** - Chemical Shift: 3.39 ppm - Number of Hydrogens: 2H - Multiplicity: Triplet - **Peak 2:** - Chemical Shift: 1.87 ppm - Number of Hydrogens: 2H - Multiplicity: Sextet - **Peak 3:** - Chemical Shift: 1.03 ppm - Number of Hydrogens: 3H - Multiplicity: Triplet **Structure of 1-Bromopropane:** The structure is illustrated with labeled hydrogen atoms: - **H1** is near the bromine atom. - **H2** is in the middle position between H1 and H3. - **H3** is at the terminal end away from the bromine. **Rationale for Peak Assignments in Structure:** By analyzing the chemical shifts and multiplicities, the peaks are assigned based on the environment of each hydrogen: - Peak 1 (3.39 ppm, triplet, 2H) corresponds to the two hydrogens (H1) adjacent to the bromine. - Peak 2 (1.87 ppm, sextet, 2H) corresponds to the two hydrogens (H2) in the middle position, influenced by adjacent groups. - Peak 3 (1.03 ppm, triplet, 3H) corresponds to the three terminal methyl hydrogens (H3). *Note:* The rationale is handwritten as: "1 figner Hchk." This detailed analysis is essential for understanding the relationship between molecular structure and NMR spectral data.
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