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4. Assign each peak in the following spectrum to the molecule shown by drawing out all the hydrogen atoms on the molecule and labeling them with the letter that is associated with their signal on the spectrum. OH 6H 4H 1H 1H 3 D C PPM B A

4. Assign each peak in the following spectrum to the molecule shown by drawing out all the hydrogen atoms on the molecule and labeling them with the letter that is associated with their signal on the spectrum. OH 6H 4H 1H 1H 3 D C PPM B A

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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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Exercise: Analyzing Proton NMR Spectrum** **Objective:** Assign each peak in the given NMR spectrum to the corresponding hydrogen atoms in the molecule shown. Draw out the hydrogen atoms on the molecule and label them with the letter associated with their signal. **Molecule Structure:** - The structure includes an OH group attached to a carbon chain. **NMR Spectrum:** - The spectrum displays the chemical shifts in parts per million (PPM) along the x-axis, and the intensity of signals on the y-axis. **Peak Assignments:** - **D**: A peak around 5 PPM representing 1 hydrogen (1H), likely corresponds to the hydrogen on the hydroxyl (OH) group. - **C**: A peak around 4 PPM representing 1 hydrogen (1H), probably related to a hydrogen adjacent to the OH group or deshielded by an electronegative element. - **B**: A peak around 2 PPM representing 4 hydrogens (4H), possibly indicating two sets of equivalent hydrogen atoms. - **A**: A peak around 1 PPM representing 6 hydrogens (6H), suggesting that it relates to methyl groups where the hydrogen atoms are in an identical environment. **Explanation of Graph:** - The four distinct peaks (labeled A, B, C, and D) indicate different chemical environments of hydrogen atoms in the molecule. - Multiplicity and integration of each signal provide insights into the arrangement and proximity of these hydrogen atoms to certain functional groups. This analytical technique is crucial for identifying the structure of organic compounds by interpreting the environment of hydrogen atoms.
Transcribed Image Text:**Exercise: Analyzing Proton NMR Spectrum** **Objective:** Assign each peak in the given NMR spectrum to the corresponding hydrogen atoms in the molecule shown. Draw out the hydrogen atoms on the molecule and label them with the letter associated with their signal. **Molecule Structure:** - The structure includes an OH group attached to a carbon chain. **NMR Spectrum:** - The spectrum displays the chemical shifts in parts per million (PPM) along the x-axis, and the intensity of signals on the y-axis. **Peak Assignments:** - **D**: A peak around 5 PPM representing 1 hydrogen (1H), likely corresponds to the hydrogen on the hydroxyl (OH) group. - **C**: A peak around 4 PPM representing 1 hydrogen (1H), probably related to a hydrogen adjacent to the OH group or deshielded by an electronegative element. - **B**: A peak around 2 PPM representing 4 hydrogens (4H), possibly indicating two sets of equivalent hydrogen atoms. - **A**: A peak around 1 PPM representing 6 hydrogens (6H), suggesting that it relates to methyl groups where the hydrogen atoms are in an identical environment. **Explanation of Graph:** - The four distinct peaks (labeled A, B, C, and D) indicate different chemical environments of hydrogen atoms in the molecule. - Multiplicity and integration of each signal provide insights into the arrangement and proximity of these hydrogen atoms to certain functional groups. This analytical technique is crucial for identifying the structure of organic compounds by interpreting the environment of hydrogen atoms.
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