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What are the key features of the IR spectroscopy of Phenacetin

What are the key features of the IR spectroscopy of Phenacetin

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
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What are the key features of the IR spectroscopy of Phenacetin

### Infrared (IR) Spectroscopy Graph Explanation **Graph Description:** This graph displays an infrared (IR) spectroscopy result, which is a plot of transmittance (%) versus wavenumber (cm⁻¹). **Axes:** - The **x-axis** represents the wavenumber in cm⁻¹, ranging from approximately 4000 to 600 cm⁻¹. The wavenumber is inversely proportional to the wavelength, commonly used in IR spectroscopy to identify functional groups in molecules. - The **y-axis** indicates transmittance (%), ranging from 0% to 45%. Transmittance measures how much light passes through the sample without being absorbed. **Key Features:** - **Broad Peaks and Valleys:** The graph shows several peaks and valleys. A broad peak between approximately 3500 cm⁻¹ and 3200 cm⁻¹ typically indicates O-H or N-H stretching vibrations. - **Regions with Lower Peaks:** Sharp peaks appearing between 1700 cm⁻¹ and 1500 cm⁻¹ are often indicative of C=O stretching vibrations, common in carbonyl groups. - **Fingerprint Region:** Below 1500 cm⁻¹, the peaks become more complex. This area is known as the fingerprint region, unique to each compound, and can be used for more specific identification of molecular structures. The IR spectrum is a valuable tool in organic chemistry for analyzing molecular structures and identifying specific functional groups within compounds.
Transcribed Image Text:### Infrared (IR) Spectroscopy Graph Explanation **Graph Description:** This graph displays an infrared (IR) spectroscopy result, which is a plot of transmittance (%) versus wavenumber (cm⁻¹). **Axes:** - The **x-axis** represents the wavenumber in cm⁻¹, ranging from approximately 4000 to 600 cm⁻¹. The wavenumber is inversely proportional to the wavelength, commonly used in IR spectroscopy to identify functional groups in molecules. - The **y-axis** indicates transmittance (%), ranging from 0% to 45%. Transmittance measures how much light passes through the sample without being absorbed. **Key Features:** - **Broad Peaks and Valleys:** The graph shows several peaks and valleys. A broad peak between approximately 3500 cm⁻¹ and 3200 cm⁻¹ typically indicates O-H or N-H stretching vibrations. - **Regions with Lower Peaks:** Sharp peaks appearing between 1700 cm⁻¹ and 1500 cm⁻¹ are often indicative of C=O stretching vibrations, common in carbonyl groups. - **Fingerprint Region:** Below 1500 cm⁻¹, the peaks become more complex. This area is known as the fingerprint region, unique to each compound, and can be used for more specific identification of molecular structures. The IR spectrum is a valuable tool in organic chemistry for analyzing molecular structures and identifying specific functional groups within compounds.
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