### Analysis of Spectral Data #### Text Description: A molecule produces two molecular ions with **m/z (mass-to-charge ratio) of 152 and 154** and a base peak with an **m/z of 73**. The IR and \( ^1H \) NMR spectra are shown below. The task is to draw the structure that best fits this data. #### Graph Descriptions: 1. **Infrared (IR) Spectrum:** - **X-Axis:** Wavenumbers (cm\(^{-1}\)), ranging from 4000 to 500. - **Y-Axis:** Shows absorbance or transmittance (not specified on image). - **Key Peaks:** - Broad peak around 3300 cm\(^{-1}\): Typically indicative of O-H or N-H stretching. - Multiple sharp peaks between 1500–500 cm\(^{-1}\): Possible C=C stretching, bending vibrations, and/or fingerprint region, depending on the functional groups present. 2. **Proton Nuclear Magnetic Resonance (\( ^1H \) NMR) Spectrum:** - **X-Axis:** Chemical shift, measured in parts per million (ppm), from 0 to 12 ppm. - **Y-Axis:** Signal intensity (relative), reflecting the number of protons. - **Key Signals:** - Signal near 1 ppm indicating 1H: Could correspond to a hydrogen in a less deshielded (likely aliphatic) environment. - Two doublets around 3.5 ppm and 4 ppm with integrations of 2H each: Likely methylene groups adjacent to electronegative atoms. ### Conclusion: Using the spectral data provided, one can hypothesize the presence of certain functional groups. The IR spectrum suggests hydroxyl or amine functionalities, while the NMR indicates multiple chemical environments for protons likely adjacent to electronegative groups or within larger molecules. Using this data in combination can guide the determination of the molecular structure, possibly suggesting a molecule with similar repeating units, functional groups, or specific symmetry, given the distribution of chemical data and mass spectrometry insights. The m/z values also suggest the presence of isotopes or specific atomic masses in the molecule. **Task:** Draw the structure that best matches these insights from the data available.
### Analysis of Spectral Data #### Text Description: A molecule produces two molecular ions with **m/z (mass-to-charge ratio) of 152 and 154** and a base peak with an **m/z of 73**. The IR and \( ^1H \) NMR spectra are shown below. The task is to draw the structure that best fits this data. #### Graph Descriptions: 1. **Infrared (IR) Spectrum:** - **X-Axis:** Wavenumbers (cm\(^{-1}\)), ranging from 4000 to 500. - **Y-Axis:** Shows absorbance or transmittance (not specified on image). - **Key Peaks:** - Broad peak around 3300 cm\(^{-1}\): Typically indicative of O-H or N-H stretching. - Multiple sharp peaks between 1500–500 cm\(^{-1}\): Possible C=C stretching, bending vibrations, and/or fingerprint region, depending on the functional groups present. 2. **Proton Nuclear Magnetic Resonance (\( ^1H \) NMR) Spectrum:** - **X-Axis:** Chemical shift, measured in parts per million (ppm), from 0 to 12 ppm. - **Y-Axis:** Signal intensity (relative), reflecting the number of protons. - **Key Signals:** - Signal near 1 ppm indicating 1H: Could correspond to a hydrogen in a less deshielded (likely aliphatic) environment. - Two doublets around 3.5 ppm and 4 ppm with integrations of 2H each: Likely methylene groups adjacent to electronegative atoms. ### Conclusion: Using the spectral data provided, one can hypothesize the presence of certain functional groups. The IR spectrum suggests hydroxyl or amine functionalities, while the NMR indicates multiple chemical environments for protons likely adjacent to electronegative groups or within larger molecules. Using this data in combination can guide the determination of the molecular structure, possibly suggesting a molecule with similar repeating units, functional groups, or specific symmetry, given the distribution of chemical data and mass spectrometry insights. The m/z values also suggest the presence of isotopes or specific atomic masses in the molecule. **Task:** Draw the structure that best matches these insights from the data available.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Analyzing Infrared Spectra
The electromagnetic radiation or frequency is classified into radio-waves, micro-waves, infrared, visible, ultraviolet, X-rays and gamma rays. The infrared spectra emission refers to the portion between the visible and the microwave areas of electromagnetic spectrum. This spectral area is usually divided into three parts, near infrared (14,290 – 4000 cm-1), mid infrared (4000 – 400 cm-1), and far infrared (700 – 200 cm-1), respectively. The number set is the number of the wave (cm-1).
IR Spectrum Of Cyclohexanone
It is the analysis of the structure of cyclohexaone using IR data interpretation.
IR Spectrum Of Anisole
Interpretation of anisole using IR spectrum obtained from IR analysis.
IR Spectroscopy
Infrared (IR) or vibrational spectroscopy is a method used for analyzing the particle's vibratory transformations. This is one of the very popular spectroscopic approaches employed by inorganic as well as organic laboratories because it is helpful in evaluating and distinguishing the frameworks of the molecules. The infra-red spectroscopy process or procedure is carried out using a tool called an infrared spectrometer to obtain an infrared spectral (or spectrophotometer).
Question
Transcribed Image Text:### Analysis of Spectral Data
#### Text Description:
A molecule produces two molecular ions with **m/z (mass-to-charge ratio) of 152 and 154** and a base peak with an **m/z of 73**. The IR and \( ^1H \) NMR spectra are shown below. The task is to draw the structure that best fits this data.
#### Graph Descriptions:
1. **Infrared (IR) Spectrum:**
- **X-Axis:** Wavenumbers (cm\(^{-1}\)), ranging from 4000 to 500.
- **Y-Axis:** Shows absorbance or transmittance (not specified on image).
- **Key Peaks:**
- Broad peak around 3300 cm\(^{-1}\): Typically indicative of O-H or N-H stretching.
- Multiple sharp peaks between 1500–500 cm\(^{-1}\): Possible C=C stretching, bending vibrations, and/or fingerprint region, depending on the functional groups present.
2. **Proton Nuclear Magnetic Resonance (\( ^1H \) NMR) Spectrum:**
- **X-Axis:** Chemical shift, measured in parts per million (ppm), from 0 to 12 ppm.
- **Y-Axis:** Signal intensity (relative), reflecting the number of protons.
- **Key Signals:**
- Signal near 1 ppm indicating 1H: Could correspond to a hydrogen in a less deshielded (likely aliphatic) environment.
- Two doublets around 3.5 ppm and 4 ppm with integrations of 2H each: Likely methylene groups adjacent to electronegative atoms.
### Conclusion:
Using the spectral data provided, one can hypothesize the presence of certain functional groups. The IR spectrum suggests hydroxyl or amine functionalities, while the NMR indicates multiple chemical environments for protons likely adjacent to electronegative groups or within larger molecules.
Using this data in combination can guide the determination of the molecular structure, possibly suggesting a molecule with similar repeating units, functional groups, or specific symmetry, given the distribution of chemical data and mass spectrometry insights. The m/z values also suggest the presence of isotopes or specific atomic masses in the molecule.
**Task:** Draw the structure that best matches these insights from the data available.
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