NMR Worksheet _2 - Your Name: TAs Name: Lab Section Number:...

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Your Name: TA’s Name: Lab Section Number: NMR Worksheet #2 Due Date: Monday, November 30 th by 5 PM Location of Drop Off: Mailboxes on the 3 rd Floor of Latimer Hall (right next to the elevators) No Late Worksheets Will Be Accepted! 1. A. Using the symbols α and β for the two spin states, show how four equivalent hydrogen atoms can couple to a CH 2 group leading to a quintet with peak ratios of 1:4:6:4:1. B. Provide a real example of a molecule whose 1 H NMR spectrum would contain a quintet similar to what you have drawn in 1A.
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2. Use the coupling constants provided to draw a splitting tree that indicates what NMR multiplicity you would expect for the resonance associated with H B in the compound shown. J AB = 8 Hz, J CB = 10 Hz Each grid is 2 Hz wide Br H B H A H A H A H C
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3. A. Reconstruct the 1 H NMR spectrum from the following data. Refer to Table 8.5 for multiplet abbreviations. 1
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NMR Worksheet _2 - Your Name: TAs Name: Lab Section Number:...

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