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Bromination of E-Stilbene IR 3200 sample1 3200 3064.89- 3030.17- 2976.16 2800 2800 IR 2400 2400 2000 2000 1800 1800 1600 1600 1496 1454.33- 1400 1396 46- 1400 1200 1232.51- 1199.72 1163.08- 1136.07- 1200 1072.42- 11/3/2022 2:59:31 PM 1000 1029.99- 1001.06- 1000 914.26- 885.33 800 812.03- 761.88-->> 800 600 cm-1 640.3 626.874 600 cm-1

Bromination of E-Stilbene IR 3200 sample1 3200 3064.89- 3030.17- 2976.16 2800 2800 IR 2400 2400 2000 2000 1800 1800 1600 1600 1496 1454.33- 1400 1396 46- 1400 1200 1232.51- 1199.72 1163.08- 1136.07- 1200 1072.42- 11/3/2022 2:59:31 PM 1000 1029.99- 1001.06- 1000 914.26- 885.33 800 812.03- 761.88-->> 800 600 cm-1 640.3 626.874 600 cm-1

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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Identify 4 peaks and annotate the IR of E-Stilbene
**Bromination of E-Stilbene: Infrared (IR) Spectroscopy Analysis** This graph depicts the IR spectroscopy results from the bromination of E-stilbene. The x-axis shows the wavenumber in cm⁻¹, ranging from approximately 400 to 3200 cm⁻¹. The y-axis displays the transmittance, indicating how much light passes through the sample at each wavenumber. ### Key Peaks and Their Wavenumbers: - **3064.89 cm⁻¹, 3030.17 cm⁻¹, 2976.16 cm⁻¹:** Characteristic of C-H stretching in aromatic rings. - **1496.76 cm⁻¹, 1454.33 cm⁻¹, 1396.46 cm⁻¹:** Possible C=C stretching in the aromatic system and bending vibrations. - **1232.51 cm⁻¹, 1199.72 cm⁻¹, 1163.08 cm⁻¹, 1136.07 cm⁻¹:** Indicative of C-H bending modes and potential C-Br stretching vibrations post-halogenation. - **1072.42 cm⁻¹, 1029.99 cm⁻¹, 1001.06 cm⁻¹:** Related to out-of-plane C-H bends typical of aromatic compounds. - **914.26 cm⁻¹, 885.33 cm⁻¹:** Strong peaks that could indicate specific functional group transformations or formation during the reaction. - **812.03 cm⁻¹, 761.88 cm⁻¹:** More C-H out-of-plane bending in aromatic structures. - **640.37 cm⁻¹, 626.87 cm⁻¹:** C-Br stretching, representing bromine incorporation into the compound. Overall, the spectra reflects the chemical changes and structural information on E-stilbene after bromination, useful for understanding functional group transformations and the presence of aromatic characteristics.
Transcribed Image Text:**Bromination of E-Stilbene: Infrared (IR) Spectroscopy Analysis** This graph depicts the IR spectroscopy results from the bromination of E-stilbene. The x-axis shows the wavenumber in cm⁻¹, ranging from approximately 400 to 3200 cm⁻¹. The y-axis displays the transmittance, indicating how much light passes through the sample at each wavenumber. ### Key Peaks and Their Wavenumbers: - **3064.89 cm⁻¹, 3030.17 cm⁻¹, 2976.16 cm⁻¹:** Characteristic of C-H stretching in aromatic rings. - **1496.76 cm⁻¹, 1454.33 cm⁻¹, 1396.46 cm⁻¹:** Possible C=C stretching in the aromatic system and bending vibrations. - **1232.51 cm⁻¹, 1199.72 cm⁻¹, 1163.08 cm⁻¹, 1136.07 cm⁻¹:** Indicative of C-H bending modes and potential C-Br stretching vibrations post-halogenation. - **1072.42 cm⁻¹, 1029.99 cm⁻¹, 1001.06 cm⁻¹:** Related to out-of-plane C-H bends typical of aromatic compounds. - **914.26 cm⁻¹, 885.33 cm⁻¹:** Strong peaks that could indicate specific functional group transformations or formation during the reaction. - **812.03 cm⁻¹, 761.88 cm⁻¹:** More C-H out-of-plane bending in aromatic structures. - **640.37 cm⁻¹, 626.87 cm⁻¹:** C-Br stretching, representing bromine incorporation into the compound. Overall, the spectra reflects the chemical changes and structural information on E-stilbene after bromination, useful for understanding functional group transformations and the presence of aromatic characteristics.
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