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Proton NMR C6H1202 1 5.0 4.5 4.0 2 elle 3.5 3.0 2.5 Chemical Shift (ppm) 2.0 1.5 6 3 1.0 0.5

Proton NMR C6H1202 1 5.0 4.5 4.0 2 elle 3.5 3.0 2.5 Chemical Shift (ppm) 2.0 1.5 6 3 1.0 0.5

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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Propose a structure that is consistent with the following 1H NMR spectra. In each case, the molecular formula is provided. For spectra with numbers at the bottom of the signal you will need to determine the integration, others with numbers above the signal integration has been determined for you.

### Proton NMR Spectrum Analysis The image presents a proton NMR (Nuclear Magnetic Resonance) spectrum for a compound with the molecular formula \( \text{C}_6\text{H}_{12}\text{O}_2 \). #### Key Features of the Spectrum: - **Chemical Shift (ppm):** The x-axis represents the chemical shift in parts per million (ppm), which provides insights into the chemical environment of the hydrogen atoms in the molecule. - **Peaks and Integration:** - **Peak 1:** - Appears at approximately 5.2 ppm. - The multiplet suggests the presence of a hydrogen atom in a deshielded environment, likely near an electronegative group or a double bond. - **Peak 2:** - Found around 2.3 ppm. - Indicates hydrogens in a more shielded environment compared to Peak 1, possibly adjacent to a carbonyl group. - **Peak 3 & 6:** - Peak 3 appears at about 1.3 ppm and is closely associated with Peak 6, which has a pronounced appearance at 1.1 ppm. - The signals likely correspond to hydrogen atoms in more shielded environments, such as those in methyl or methylene groups. #### Analysis: The diversity of peaks across the spectrum provides valuable insights into the structure of the molecule, indicating the different environments experienced by the hydrogen atoms. Understanding these peaks helps in deducing the functional groups present in the compound and their possible structures. This spectrum is a pivotal tool for chemists to uncover the molecular architecture and ensure the identity and purity of chemical substances in various applications.
Transcribed Image Text:### Proton NMR Spectrum Analysis The image presents a proton NMR (Nuclear Magnetic Resonance) spectrum for a compound with the molecular formula \( \text{C}_6\text{H}_{12}\text{O}_2 \). #### Key Features of the Spectrum: - **Chemical Shift (ppm):** The x-axis represents the chemical shift in parts per million (ppm), which provides insights into the chemical environment of the hydrogen atoms in the molecule. - **Peaks and Integration:** - **Peak 1:** - Appears at approximately 5.2 ppm. - The multiplet suggests the presence of a hydrogen atom in a deshielded environment, likely near an electronegative group or a double bond. - **Peak 2:** - Found around 2.3 ppm. - Indicates hydrogens in a more shielded environment compared to Peak 1, possibly adjacent to a carbonyl group. - **Peak 3 & 6:** - Peak 3 appears at about 1.3 ppm and is closely associated with Peak 6, which has a pronounced appearance at 1.1 ppm. - The signals likely correspond to hydrogen atoms in more shielded environments, such as those in methyl or methylene groups. #### Analysis: The diversity of peaks across the spectrum provides valuable insights into the structure of the molecule, indicating the different environments experienced by the hydrogen atoms. Understanding these peaks helps in deducing the functional groups present in the compound and their possible structures. This spectrum is a pivotal tool for chemists to uncover the molecular architecture and ensure the identity and purity of chemical substances in various applications.
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