The three compounds shown below are structural isomers of each other. Ma each compound with its corresponding mass spectrum and draw the fragment corresponding to the base peak in each. а. b. с. НО H' 100 - Compound 80 60 Fragment 40 20 omtt tr mm 10 20 30 40 50 60 70 80 m/z 100 Compound 80 60 Fragment 40 20 10 20 30 40 50 60 70 80 m/z 100 Compound MS-NU-0661 80 60 Fragment 40 Relative Intensity Relative Intensity Relative Intensity

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**Title: Structural Isomers and Mass Spectrometry Analysis**

**Introduction:**
The three compounds below are structural isomers of each other. Each compound needs to be matched with its corresponding mass spectrum. In addition, the fragment ion corresponding to the base peak in each spectrum should be identified and depicted.

**Structural Isomers:**
- **a.** (Image: 2-methyl-2-propanol)
- **b.** (Image: 2-butanone)
- **c.** (Image: 3-methyl-2-butanone)

**Mass Spectra Analysis:**

***Spectrum 1:***
- **Graph Description:**
  - X-axis: m/z (mass-to-charge ratio), ranging from 0 to 90.
  - Y-axis: Relative Intensity, ranging from 0 to 100.
  - Base peak at approximately m/z = 43.
  - Several smaller peaks with varying intensities.

- **Compound:** (Blank space provided)
- **Fragment:** (Blank space provided)

***Spectrum 2:***
- **Graph Description:**
  - X-axis: m/z (mass-to-charge ratio), ranging from 0 to 90.
  - Y-axis: Relative Intensity, ranging from 0 to 100.
  - Base peak at approximately m/z = 43.
  - Other significant peaks at m/z = 29 and 57 among smaller peaks.

- **Compound:** (Blank space provided)
- **Fragment:** (Blank space provided)

***Spectrum 3:***
- **Graph Description:**
  - X-axis: m/z (mass-to-charge ratio), ranging from 0 to 105.
  - Y-axis: Relative Intensity, ranging from 0 to 100.
  - Base peak at approximately m/z = 43.
  - Additional prominent peaks occurring at m/z = 29, 57, and 72.

- **Compound:** (Blank space provided)
- **Fragment:** (Blank space provided)

**Instructions:**

1. **Match each compound** with one of the mass spectra provided.
2. **Draw the fragment ions** corresponding to the base peak for each compound. 

**Conclusion:**
Understanding the mass spectrometry of structural isomers is crucial for distinguishing compounds with shared molecular formulas but different structures. This exercise aids in mastering the use of mass spectrometry for compound identification.
Transcribed Image Text:**Title: Structural Isomers and Mass Spectrometry Analysis** **Introduction:** The three compounds below are structural isomers of each other. Each compound needs to be matched with its corresponding mass spectrum. In addition, the fragment ion corresponding to the base peak in each spectrum should be identified and depicted. **Structural Isomers:** - **a.** (Image: 2-methyl-2-propanol) - **b.** (Image: 2-butanone) - **c.** (Image: 3-methyl-2-butanone) **Mass Spectra Analysis:** ***Spectrum 1:*** - **Graph Description:** - X-axis: m/z (mass-to-charge ratio), ranging from 0 to 90. - Y-axis: Relative Intensity, ranging from 0 to 100. - Base peak at approximately m/z = 43. - Several smaller peaks with varying intensities. - **Compound:** (Blank space provided) - **Fragment:** (Blank space provided) ***Spectrum 2:*** - **Graph Description:** - X-axis: m/z (mass-to-charge ratio), ranging from 0 to 90. - Y-axis: Relative Intensity, ranging from 0 to 100. - Base peak at approximately m/z = 43. - Other significant peaks at m/z = 29 and 57 among smaller peaks. - **Compound:** (Blank space provided) - **Fragment:** (Blank space provided) ***Spectrum 3:*** - **Graph Description:** - X-axis: m/z (mass-to-charge ratio), ranging from 0 to 105. - Y-axis: Relative Intensity, ranging from 0 to 100. - Base peak at approximately m/z = 43. - Additional prominent peaks occurring at m/z = 29, 57, and 72. - **Compound:** (Blank space provided) - **Fragment:** (Blank space provided) **Instructions:** 1. **Match each compound** with one of the mass spectra provided. 2. **Draw the fragment ions** corresponding to the base peak for each compound. **Conclusion:** Understanding the mass spectrometry of structural isomers is crucial for distinguishing compounds with shared molecular formulas but different structures. This exercise aids in mastering the use of mass spectrometry for compound identification.
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