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**Infrared Spectroscopy Graph Explanation** The image displays an infrared (IR) spectrum graph, illustrating the transmittance of a sample across various wavenumbers (cm⁻¹). Here's a detailed breakdown of the graph: **Graph Overview:** - **Horizontal Axis (X-axis):** Represents the wavenumbers in cm⁻¹, ranging from approximately 500 to 4000 cm⁻¹. These values correlate to the energies associated with molecular vibrations. - **Vertical Axis (Y-axis):** Indicates the percentage transmittance, from 0 to 75%. Transmittance is the amount of light that passes through the sample without being absorbed. **Key Peaks:** 1. **3464.83 cm⁻¹:** This peak could be attributed to the O-H or N-H stretching vibrations, common in alcohols or amines. 2. **2931.95 cm⁻¹ and 2860.30 cm⁻¹:** Typically correspond to C-H stretching vibrations, indicating the presence of alkanes. 3. **1743.39 cm⁻¹:** Likely represents a C=O stretching vibration, often found in ketones, aldehydes, or carboxylic acids. 4. **1468.09 cm⁻¹, 1365.86 cm⁻¹:** These peaks might be associated with C-H bending or deformation. 5. **1242.39 cm⁻¹:** Could indicate C-O stretching, suggestive of esters or ethers. 6. **1178.14 cm⁻¹, 1043.00 cm⁻¹:** May represent additional C-O or C-N stretching vibrations. 7. **945.50 cm⁻¹, 895.81 cm⁻¹, 807.05 cm⁻¹:** These peaks could be indicative of out-of-plane bending vibrations, often seen in aromatic compounds. 8. **Other Peaks (726.22 cm⁻¹, 632.87 cm⁻¹, 606.18 cm⁻¹):** These are typically associated with various bending or deformation modes, potentially in alkenes or broader molecular frameworks. **Conclusion:** The graph provides a spectral fingerprint that can be used to identify functional groups present in the molecular structure of the sample tested. Further analysis and comparison with known standards are necessary to determine the exact composition and structure of the sample.

**Infrared Spectroscopy Graph Explanation** The image displays an infrared (IR) spectrum graph, illustrating the transmittance of a sample across various wavenumbers (cm⁻¹). Here's a detailed breakdown of the graph: **Graph Overview:** - **Horizontal Axis (X-axis):** Represents the wavenumbers in cm⁻¹, ranging from approximately 500 to 4000 cm⁻¹. These values correlate to the energies associated with molecular vibrations. - **Vertical Axis (Y-axis):** Indicates the percentage transmittance, from 0 to 75%. Transmittance is the amount of light that passes through the sample without being absorbed. **Key Peaks:** 1. **3464.83 cm⁻¹:** This peak could be attributed to the O-H or N-H stretching vibrations, common in alcohols or amines. 2. **2931.95 cm⁻¹ and 2860.30 cm⁻¹:** Typically correspond to C-H stretching vibrations, indicating the presence of alkanes. 3. **1743.39 cm⁻¹:** Likely represents a C=O stretching vibration, often found in ketones, aldehydes, or carboxylic acids. 4. **1468.09 cm⁻¹, 1365.86 cm⁻¹:** These peaks might be associated with C-H bending or deformation. 5. **1242.39 cm⁻¹:** Could indicate C-O stretching, suggestive of esters or ethers. 6. **1178.14 cm⁻¹, 1043.00 cm⁻¹:** May represent additional C-O or C-N stretching vibrations. 7. **945.50 cm⁻¹, 895.81 cm⁻¹, 807.05 cm⁻¹:** These peaks could be indicative of out-of-plane bending vibrations, often seen in aromatic compounds. 8. **Other Peaks (726.22 cm⁻¹, 632.87 cm⁻¹, 606.18 cm⁻¹):** These are typically associated with various bending or deformation modes, potentially in alkenes or broader molecular frameworks. **Conclusion:** The graph provides a spectral fingerprint that can be used to identify functional groups present in the molecular structure of the sample tested. Further analysis and comparison with known standards are necessary to determine the exact composition and structure of the sample.

Chemistry
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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What are the peak positions, bond types and functional group in my IR spectra?

**Infrared Spectroscopy Graph Explanation** The image displays an infrared (IR) spectrum graph, illustrating the transmittance of a sample across various wavenumbers (cm⁻¹). Here's a detailed breakdown of the graph: **Graph Overview:** - **Horizontal Axis (X-axis):** Represents the wavenumbers in cm⁻¹, ranging from approximately 500 to 4000 cm⁻¹. These values correlate to the energies associated with molecular vibrations. - **Vertical Axis (Y-axis):** Indicates the percentage transmittance, from 0 to 75%. Transmittance is the amount of light that passes through the sample without being absorbed. **Key Peaks:** 1. **3464.83 cm⁻¹:** This peak could be attributed to the O-H or N-H stretching vibrations, common in alcohols or amines. 2. **2931.95 cm⁻¹ and 2860.30 cm⁻¹:** Typically correspond to C-H stretching vibrations, indicating the presence of alkanes. 3. **1743.39 cm⁻¹:** Likely represents a C=O stretching vibration, often found in ketones, aldehydes, or carboxylic acids. 4. **1468.09 cm⁻¹, 1365.86 cm⁻¹:** These peaks might be associated with C-H bending or deformation. 5. **1242.39 cm⁻¹:** Could indicate C-O stretching, suggestive of esters or ethers. 6. **1178.14 cm⁻¹, 1043.00 cm⁻¹:** May represent additional C-O or C-N stretching vibrations. 7. **945.50 cm⁻¹, 895.81 cm⁻¹, 807.05 cm⁻¹:** These peaks could be indicative of out-of-plane bending vibrations, often seen in aromatic compounds. 8. **Other Peaks (726.22 cm⁻¹, 632.87 cm⁻¹, 606.18 cm⁻¹):** These are typically associated with various bending or deformation modes, potentially in alkenes or broader molecular frameworks. **Conclusion:** The graph provides a spectral fingerprint that can be used to identify functional groups present in the molecular structure of the sample tested. Further analysis and comparison with known standards are necessary to determine the exact composition and structure of the sample.
Transcribed Image Text:**Infrared Spectroscopy Graph Explanation** The image displays an infrared (IR) spectrum graph, illustrating the transmittance of a sample across various wavenumbers (cm⁻¹). Here's a detailed breakdown of the graph: **Graph Overview:** - **Horizontal Axis (X-axis):** Represents the wavenumbers in cm⁻¹, ranging from approximately 500 to 4000 cm⁻¹. These values correlate to the energies associated with molecular vibrations. - **Vertical Axis (Y-axis):** Indicates the percentage transmittance, from 0 to 75%. Transmittance is the amount of light that passes through the sample without being absorbed. **Key Peaks:** 1. **3464.83 cm⁻¹:** This peak could be attributed to the O-H or N-H stretching vibrations, common in alcohols or amines. 2. **2931.95 cm⁻¹ and 2860.30 cm⁻¹:** Typically correspond to C-H stretching vibrations, indicating the presence of alkanes. 3. **1743.39 cm⁻¹:** Likely represents a C=O stretching vibration, often found in ketones, aldehydes, or carboxylic acids. 4. **1468.09 cm⁻¹, 1365.86 cm⁻¹:** These peaks might be associated with C-H bending or deformation. 5. **1242.39 cm⁻¹:** Could indicate C-O stretching, suggestive of esters or ethers. 6. **1178.14 cm⁻¹, 1043.00 cm⁻¹:** May represent additional C-O or C-N stretching vibrations. 7. **945.50 cm⁻¹, 895.81 cm⁻¹, 807.05 cm⁻¹:** These peaks could be indicative of out-of-plane bending vibrations, often seen in aromatic compounds. 8. **Other Peaks (726.22 cm⁻¹, 632.87 cm⁻¹, 606.18 cm⁻¹):** These are typically associated with various bending or deformation modes, potentially in alkenes or broader molecular frameworks. **Conclusion:** The graph provides a spectral fingerprint that can be used to identify functional groups present in the molecular structure of the sample tested. Further analysis and comparison with known standards are necessary to determine the exact composition and structure of the sample.
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