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...
Related questions
Question
Which molecule best fits the NMR spectrum?
![**Section 13.19: Identifying the Molecule from the NMR Spectrum**
**Objective:**
Determine which molecule best corresponds to the provided NMR spectrum.
**Given Information:**
The NMR spectrum represents the compound with the molecular formula **C₄H₈O₂**.
**NMR Spectrum Analysis:**
- The spectrum contains a single peak at approximately 3.8 ppm.
**Options for Molecular Structures:**
a. A six-membered ring with two oxygen atoms.
b. A four-membered ring with two hydroxyl (OH) groups, each on a different carbon atom.
c. A four-membered ring with two hydroxyl (OH) groups on the same carbon atom.
d. A three-membered ring with two hydroxyl (OH) groups, each on different carbon atoms.
e. A three-membered ring with two hydroxyl (OH) groups on the same carbon atom.
**Analysis:**
The chemical shift observed in the NMR spectrum at 3.8 ppm suggests the presence of a chemical environment typical for functional groups such as ethers or esters. Consider the structure and functional groups present in each option to identify which molecule best fits this spectral data.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1968a8e8-9c25-49ed-a8bc-a43a5acb97a4%2F9b85a0d5-c4da-466d-adbf-3264f61dc8be%2Frkp8kwt_processed.png&w=3840&q=75)
Transcribed Image Text:**Section 13.19: Identifying the Molecule from the NMR Spectrum**
**Objective:**
Determine which molecule best corresponds to the provided NMR spectrum.
**Given Information:**
The NMR spectrum represents the compound with the molecular formula **C₄H₈O₂**.
**NMR Spectrum Analysis:**
- The spectrum contains a single peak at approximately 3.8 ppm.
**Options for Molecular Structures:**
a. A six-membered ring with two oxygen atoms.
b. A four-membered ring with two hydroxyl (OH) groups, each on a different carbon atom.
c. A four-membered ring with two hydroxyl (OH) groups on the same carbon atom.
d. A three-membered ring with two hydroxyl (OH) groups, each on different carbon atoms.
e. A three-membered ring with two hydroxyl (OH) groups on the same carbon atom.
**Analysis:**
The chemical shift observed in the NMR spectrum at 3.8 ppm suggests the presence of a chemical environment typical for functional groups such as ethers or esters. Consider the structure and functional groups present in each option to identify which molecule best fits this spectral data.
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A question based on NMR spectrum. A multiple choice having structure of 5 organic compounds and a HNMR spectrum are prescribed. The exact structure that would match with the given HNMR spectrum is to be answered.
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