The 1H NMR spectrum, 13C NMR spectrum, mass spectrum, and IR spectrum below belong to a chemical with the molecular formula C4H9XO, where X is a halogen. Provide a structure for that compound. You must explain how you determined the structure for full credit based on the data bellow.

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The 1H NMR spectrum, 13C NMR spectrum, mass spectrum, and IR spectrum below belong to a chemical with
the molecular formula C4H9XO, where X is a halogen. Provide a structure for that compound. You must explain
how you determined the structure for full credit based on the data bellow.

### Spectral Analysis Overview

#### 1. Infrared (IR) Spectrum (Top Graph)
The top graph is an infrared (IR) spectrum, which plots the transmittance versus wavenumber (cm⁻¹) to identify functional groups in a compound. Key features in this spectrum include several sharp peaks and broad bands. The spectrum provides insights into the types of bonds and molecular vibrations that occur within the sample.

- **Peaks:** Different peaks represent various bond vibrations. For instance, broad peaks around 3400 cm⁻¹ often indicate O-H or N-H stretching, while sharp peaks near 1700 cm⁻¹ indicate C=O stretching.
- **Wavenumber Range:** Spans from 4000 cm⁻¹ to 500 cm⁻¹, typical for mid-infrared spectroscopy.

#### 2. Mass Spectrum (Middle Graph)
The middle graph shows a mass spectrum with relative intensity plotted against mass-to-charge ratio (m/z). This graph is used to determine the molecular weight and structural information of the compound.

- **Peaks:** Each peak corresponds to a fragment ion, with the tallest peak commonly known as the base peak. The molecular ion peak, important for determining molecular weight, is typically present.
- **m/z Range:** The x-axis ranges from 0 to 175, showing various fragmentations of the sample.

#### 3. Nuclear Magnetic Resonance (NMR) Spectrum (Bottom Graph)
The bottom graph is an NMR spectrum, commonly used to determine the structure of organic compounds by identifying hydrogen environments.

- **Chemical Shift:** The x-axis shows the chemical shift in ppm (parts per million), ranging from 12 to 0 ppm. Each peak represents hydrogen atoms in different chemical environments.
- **Coupling and Splitting:** Peaks may be split into multiplets due to neighboring hydrogen atoms, providing structural details.

These three spectral techniques together provide comprehensive information about the chemical structure and composition of the sample.
Transcribed Image Text:### Spectral Analysis Overview #### 1. Infrared (IR) Spectrum (Top Graph) The top graph is an infrared (IR) spectrum, which plots the transmittance versus wavenumber (cm⁻¹) to identify functional groups in a compound. Key features in this spectrum include several sharp peaks and broad bands. The spectrum provides insights into the types of bonds and molecular vibrations that occur within the sample. - **Peaks:** Different peaks represent various bond vibrations. For instance, broad peaks around 3400 cm⁻¹ often indicate O-H or N-H stretching, while sharp peaks near 1700 cm⁻¹ indicate C=O stretching. - **Wavenumber Range:** Spans from 4000 cm⁻¹ to 500 cm⁻¹, typical for mid-infrared spectroscopy. #### 2. Mass Spectrum (Middle Graph) The middle graph shows a mass spectrum with relative intensity plotted against mass-to-charge ratio (m/z). This graph is used to determine the molecular weight and structural information of the compound. - **Peaks:** Each peak corresponds to a fragment ion, with the tallest peak commonly known as the base peak. The molecular ion peak, important for determining molecular weight, is typically present. - **m/z Range:** The x-axis ranges from 0 to 175, showing various fragmentations of the sample. #### 3. Nuclear Magnetic Resonance (NMR) Spectrum (Bottom Graph) The bottom graph is an NMR spectrum, commonly used to determine the structure of organic compounds by identifying hydrogen environments. - **Chemical Shift:** The x-axis shows the chemical shift in ppm (parts per million), ranging from 12 to 0 ppm. Each peak represents hydrogen atoms in different chemical environments. - **Coupling and Splitting:** Peaks may be split into multiplets due to neighboring hydrogen atoms, providing structural details. These three spectral techniques together provide comprehensive information about the chemical structure and composition of the sample.
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