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Assign how many signals you would expect on the C NMR for each of the following: A D кон H₂N. НО В 0 NH₂ E ОН НО ОН F ОН

Assign how many signals you would expect on the C NMR for each of the following: A D кон H₂N. НО В 0 NH₂ E ОН НО ОН F ОН

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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The image displays a dropdown menu from a digital form with options to select numbers. The dropdown is associated with items labeled A through F, but it is currently open next to item B. The available options in the dropdown menu are: - 11 - 10 - 3 - 2 - 8 - 9 - 7 - 5 - 4 - 12 - 6 This dropdown menu allows users to choose a numeric value for the corresponding item, which may represent a category or response in a survey or dataset. Each item from A to F has a similar dropdown, though only the one next to B is shown as open.
Transcribed Image Text:The image displays a dropdown menu from a digital form with options to select numbers. The dropdown is associated with items labeled A through F, but it is currently open next to item B. The available options in the dropdown menu are: - 11 - 10 - 3 - 2 - 8 - 9 - 7 - 5 - 4 - 12 - 6 This dropdown menu allows users to choose a numeric value for the corresponding item, which may represent a category or response in a survey or dataset. Each item from A to F has a similar dropdown, though only the one next to B is shown as open.
**Title: Understanding C NMR Signal Assignments** **Introduction** In this exercise, we will explore the number of signals you would expect to observe in a Carbon-13 NMR (Nuclear Magnetic Resonance) spectrum for each of the following compounds. Carbon-13 NMR is a powerful analytical tool used in chemistry to determine the structures of organic molecules based on the environments of carbon atoms. **Compounds** **A.** A cyclohexane derivative with a single methyl group attached. **B.** An amino acid featuring an amine group (NH₂) and a carboxylic acid group (COOH). **C.** A phenolic compound with two hydroxyl groups (OH) and a long alkyl side chain. **D.** A bicyclic purine with keto groups (C=O). **E.** A compound resembling an amino acid, featuring hydroxyl (OH) and amine (NH₂) functional groups, in addition to a carboxylic acid group. **F.** An aromatic compound containing a phenol group (OH) and an amide group (C=ONH₂). **Instructions** For each structure, assign how many distinct carbon signals you would expect in a Carbon-13 NMR spectrum. Consider symmetry, functional groups, and different carbon environments when making your assignments.
Transcribed Image Text:**Title: Understanding C NMR Signal Assignments** **Introduction** In this exercise, we will explore the number of signals you would expect to observe in a Carbon-13 NMR (Nuclear Magnetic Resonance) spectrum for each of the following compounds. Carbon-13 NMR is a powerful analytical tool used in chemistry to determine the structures of organic molecules based on the environments of carbon atoms. **Compounds** **A.** A cyclohexane derivative with a single methyl group attached. **B.** An amino acid featuring an amine group (NH₂) and a carboxylic acid group (COOH). **C.** A phenolic compound with two hydroxyl groups (OH) and a long alkyl side chain. **D.** A bicyclic purine with keto groups (C=O). **E.** A compound resembling an amino acid, featuring hydroxyl (OH) and amine (NH₂) functional groups, in addition to a carboxylic acid group. **F.** An aromatic compound containing a phenol group (OH) and an amide group (C=ONH₂). **Instructions** For each structure, assign how many distinct carbon signals you would expect in a Carbon-13 NMR spectrum. Consider symmetry, functional groups, and different carbon environments when making your assignments.
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