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### Proton NMR Spectrum Analysis #### Introduction For the given molecule, protons A-E are identified on the NMR spectrum below and correspond to the five unique protons present in the structure. #### Task 1. **Proton Assignment:** - Place all the protons on the molecule and categorize them by labeling as Ha, Hb, etc. 2. **Table Completion:** - Fill in the table for this molecule (refer to the indicated answer sheet). #### Molecular Structure - The structure shown is a bromoalkene featuring a vinyl group. #### NMR Spectrum Details - The x-axis represents the chemical shift in parts per million (PPM). - The spectrum displays five distinct peaks labeled E, D, C, B, and A. ##### Peak Analysis - **Peak E:** - Appears around 5.8-6.0 PPM. - Indicates a proton attached to a carbon that is part of a vinyl group. - **Peak D:** - Located near 5.2-5.4 PPM. - Also represents a proton in the vinyl region. - **Peak C:** - Found close to 5.0-5.1 PPM. - Corresponds to a vinyl proton as well. - **Peak B:** - Appears around 1.9-2.1 PPM. - Suggests a proton located on the carbon nearest to the bromine atom. - **Peak A:** - Occurs approximately at 1.7-1.8 PPM. - Represents the methyl protons in the alkane portion of the molecule. #### Conclusion This analysis helps to understand the proton environment in the given molecule and provides a comprehensive approach to identifying specific proton types through the spectrum.

### Proton NMR Spectrum Analysis #### Introduction For the given molecule, protons A-E are identified on the NMR spectrum below and correspond to the five unique protons present in the structure. #### Task 1. **Proton Assignment:** - Place all the protons on the molecule and categorize them by labeling as Ha, Hb, etc. 2. **Table Completion:** - Fill in the table for this molecule (refer to the indicated answer sheet). #### Molecular Structure - The structure shown is a bromoalkene featuring a vinyl group. #### NMR Spectrum Details - The x-axis represents the chemical shift in parts per million (PPM). - The spectrum displays five distinct peaks labeled E, D, C, B, and A. ##### Peak Analysis - **Peak E:** - Appears around 5.8-6.0 PPM. - Indicates a proton attached to a carbon that is part of a vinyl group. - **Peak D:** - Located near 5.2-5.4 PPM. - Also represents a proton in the vinyl region. - **Peak C:** - Found close to 5.0-5.1 PPM. - Corresponds to a vinyl proton as well. - **Peak B:** - Appears around 1.9-2.1 PPM. - Suggests a proton located on the carbon nearest to the bromine atom. - **Peak A:** - Occurs approximately at 1.7-1.8 PPM. - Represents the methyl protons in the alkane portion of the molecule. #### Conclusion This analysis helps to understand the proton environment in the given molecule and provides a comprehensive approach to identifying specific proton types through the spectrum.

Chemistry
Chemistry
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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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### Proton NMR Spectrum Analysis #### Introduction For the given molecule, protons A-E are identified on the NMR spectrum below and correspond to the five unique protons present in the structure. #### Task 1. **Proton Assignment:** - Place all the protons on the molecule and categorize them by labeling as Ha, Hb, etc. 2. **Table Completion:** - Fill in the table for this molecule (refer to the indicated answer sheet). #### Molecular Structure - The structure shown is a bromoalkene featuring a vinyl group. #### NMR Spectrum Details - The x-axis represents the chemical shift in parts per million (PPM). - The spectrum displays five distinct peaks labeled E, D, C, B, and A. ##### Peak Analysis - **Peak E:** - Appears around 5.8-6.0 PPM. - Indicates a proton attached to a carbon that is part of a vinyl group. - **Peak D:** - Located near 5.2-5.4 PPM. - Also represents a proton in the vinyl region. - **Peak C:** - Found close to 5.0-5.1 PPM. - Corresponds to a vinyl proton as well. - **Peak B:** - Appears around 1.9-2.1 PPM. - Suggests a proton located on the carbon nearest to the bromine atom. - **Peak A:** - Occurs approximately at 1.7-1.8 PPM. - Represents the methyl protons in the alkane portion of the molecule. #### Conclusion This analysis helps to understand the proton environment in the given molecule and provides a comprehensive approach to identifying specific proton types through the spectrum.
Transcribed Image Text:### Proton NMR Spectrum Analysis #### Introduction For the given molecule, protons A-E are identified on the NMR spectrum below and correspond to the five unique protons present in the structure. #### Task 1. **Proton Assignment:** - Place all the protons on the molecule and categorize them by labeling as Ha, Hb, etc. 2. **Table Completion:** - Fill in the table for this molecule (refer to the indicated answer sheet). #### Molecular Structure - The structure shown is a bromoalkene featuring a vinyl group. #### NMR Spectrum Details - The x-axis represents the chemical shift in parts per million (PPM). - The spectrum displays five distinct peaks labeled E, D, C, B, and A. ##### Peak Analysis - **Peak E:** - Appears around 5.8-6.0 PPM. - Indicates a proton attached to a carbon that is part of a vinyl group. - **Peak D:** - Located near 5.2-5.4 PPM. - Also represents a proton in the vinyl region. - **Peak C:** - Found close to 5.0-5.1 PPM. - Corresponds to a vinyl proton as well. - **Peak B:** - Appears around 1.9-2.1 PPM. - Suggests a proton located on the carbon nearest to the bromine atom. - **Peak A:** - Occurs approximately at 1.7-1.8 PPM. - Represents the methyl protons in the alkane portion of the molecule. #### Conclusion This analysis helps to understand the proton environment in the given molecule and provides a comprehensive approach to identifying specific proton types through the spectrum.
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The question is based on the concept of HNMR- spectroscopy.

We need to assign the protons to different delta values.



 





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