## Experiment: Analyzing the Proton NMR Spectrum ### DescriptionThe peaks on the following \( ^1H \) NMR spectrum have been labeled. Use this data to complete the \( ^1H \) NMR table provided below. This will assist when making a similar table for post-lab analysis after determining your molecule's structure.### NMR Spectrum OverviewThe graph is a \( ^1H \) NMR spectrum with peaks labeled from A to E. These labeled peaks correspond to different hydrogen environments in the molecule's structure, depicted as a chemical diagram next to the spectrum.#### Key Observations:- **Chemical Shifts**: Measured in parts per million (ppm), indicating the environment of protons.- **Integration**: Reflects the relative number of protons.- **Multiplicity**: Shows the splitting pattern of each peak.### Chemical Structure and Peak Assignment- **Structure**: The molecule diagram shows a compound with labeled hydrogen atoms corresponding to peaks A to E.- **Labels**: Each hydrogen environment is labeled on the molecular structure.### NMR Spectrum Peaks- **Chemical Shift Assignments**: - **Peak A**: Appears near 7.46 ppm. - **Peak B**: Appears near 7.37 ppm. - **Peak C**: Appears near 2.33 ppm. - **Peak D**: Appears at 2.11 ppm. - **Peak E**: Appears near 1.32 ppm. - **Integration Values**: - **Peak A**: Area under the peak labeled as '2'. - **Peak B**: Area labeled as '2'. - **Peak C**: Area labeled as '3'. - **Peak D**: Area labeled as '3'. - **Peak E**: Area labeled as '3'.### Reference NotesA reference peak is noted on the spectrum but is not part of the molecule being analyzed.### Data Table| Assignment | Chemical Shift (ppm) | Integration | Multiplicity ||------------|----------------------|-------------|--------------|| A | | | || B | | | || C | | | || D | | | || E | | | |*(Fill in data using observations from the NMR

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6. The peaks on the following 'H NMR spectrum have been assigned for you. Complete the 'H NMR table below. (You will make a similar table for your post-lab once you have determined the structure of your molecule.) This is a reference peakit is not part of the molecule D „CH3 A H. H BH H. E A B 2 O ppm 8. 6. 23 2 CHM 2070 Lab Fall 2020 Assignment Chemical shift (ppm) Integration Multiplicity A D E (Chemical shifts are given above each peak. Integrations are below each peak.) 98'L 7.37 2.59

6. The peaks on the following 'H NMR spectrum have been assigned for you. Complete the 'H NMR table below. (You will make a similar table for your post-lab once you have determined the structure of your molecule.) This is a reference peakit is not part of the molecule D „CH3 A H. H BH H. E A B 2 O ppm 8. 6. 23 2 CHM 2070 Lab Fall 2020 Assignment Chemical shift (ppm) Integration Multiplicity A D E (Chemical shifts are given above each peak. Integrations are below each peak.) 98'L 7.37 2.59

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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