A compound with molecular formula C6H10 displays the following IR and Mass Spectrum. a) Calculate the hydrogen deficiency index (HDI) for the compound in the box below HDI = 4000 Relative Intensity b) Identify and label the functional group for the indicated peaks in the IR spectrum in the box provided. c) Identify and label the indicated peaks in the mass spectrum. Which is the base peak and which is the molecular ion peak [M]+? d) Propose a structure for the compound that is consistent with the IR and MS spectra in the box below. Structures written outside the box will NOT be graded. 100- 80- 60- 40- 20- 0 10 3000 MS-NU-6767 20 30 2008 RAVENUMBER 40 50 m/z 1500 60 1000 70 80 500 Proposed structure:

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**Title: Analysis of C₆H₁₀ using IR and Mass Spectrometry**

A compound with the molecular formula C₆H₁₀ is analyzed through IR and mass spectrometry. Below are the tasks for understanding and interpreting the data:

**a) Calculate the hydrogen deficiency index (HDI) for the compound.**

- **HDI =** [Box for Calculation]

**b) Identify and label the functional group for the indicated peaks in the IR spectrum.**

- The IR spectrum graph shows intensity on the y-axis and wavenumber on the x-axis. Key areas to note:
  - A peak around 3000 cm⁻¹ indicates C-H stretching.
  - Other notable peaks should be identified and labeled accordingly in the provided boxes.

**c) Identify and label the indicated peaks in the mass spectrum. Determine the base peak and the molecular ion peak [M]+.**

- The mass spectrum graph shows relative intensity on the y-axis and m/z (mass-to-charge ratio) on the x-axis. Key points:
  - The base peak, which is the tallest, indicates the most stable fragment.
  - The molecular ion peak [M]+ reflects the molecular weight of the compound.

**d) Propose a structure for the compound consistent with the IR and MS spectra.**

- Draw the structure within the provided box, ensuring it aligns with the spectral data.

**Graph Details:**

1. **IR Spectrum:**
   - A complex series of peaks indicating various vibrational modes.
   - Noticeable peaks include a broad peak near 3000 cm⁻¹ and others that correspond to typical bonds like C=C, C=O, or C-H.

2. **Mass Spectrum:**
   - Shows several peaks, with a prominent peak around m/z = 82 indicating the molecular ion peak.
   - The base peak is crucial for identifying the primary fragment pattern.

**Conclusion:**

This exercise involves calculating the HDI to determine the degree of unsaturation and utilizing IR and MS data to deduce the structural information of the compound with formula C₆H₁₀. Use these spectra to inform your proposed molecular structure.
Transcribed Image Text:**Title: Analysis of C₆H₁₀ using IR and Mass Spectrometry** A compound with the molecular formula C₆H₁₀ is analyzed through IR and mass spectrometry. Below are the tasks for understanding and interpreting the data: **a) Calculate the hydrogen deficiency index (HDI) for the compound.** - **HDI =** [Box for Calculation] **b) Identify and label the functional group for the indicated peaks in the IR spectrum.** - The IR spectrum graph shows intensity on the y-axis and wavenumber on the x-axis. Key areas to note: - A peak around 3000 cm⁻¹ indicates C-H stretching. - Other notable peaks should be identified and labeled accordingly in the provided boxes. **c) Identify and label the indicated peaks in the mass spectrum. Determine the base peak and the molecular ion peak [M]+.** - The mass spectrum graph shows relative intensity on the y-axis and m/z (mass-to-charge ratio) on the x-axis. Key points: - The base peak, which is the tallest, indicates the most stable fragment. - The molecular ion peak [M]+ reflects the molecular weight of the compound. **d) Propose a structure for the compound consistent with the IR and MS spectra.** - Draw the structure within the provided box, ensuring it aligns with the spectral data. **Graph Details:** 1. **IR Spectrum:** - A complex series of peaks indicating various vibrational modes. - Noticeable peaks include a broad peak near 3000 cm⁻¹ and others that correspond to typical bonds like C=C, C=O, or C-H. 2. **Mass Spectrum:** - Shows several peaks, with a prominent peak around m/z = 82 indicating the molecular ion peak. - The base peak is crucial for identifying the primary fragment pattern. **Conclusion:** This exercise involves calculating the HDI to determine the degree of unsaturation and utilizing IR and MS data to deduce the structural information of the compound with formula C₆H₁₀. Use these spectra to inform your proposed molecular structure.
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