CHM 313 Theory Questions: Proton NMR Spectroscopy: Principles and Spectral Analysis

300 Level Chemistry Department exam questions and detailed answers. Download the answers in document format. Correct, detailed, and straightforward answers.

Questions:

a. List four kinds of information provided by proton NMR spectroscopy.

b. Considering the chemical shifts of protons in the following compounds:
i. Indicate the number of different NMR signals by labeling magnetically distinct hydrogen sets as a, b, c, d, etc.
ii. Underline the hydrogen atom(s) with the farthest downfield NMR signal.
iii. For each set, indicate the expected signal multiplicity.
Compounds:

1. CH₃CH₂Cl

2. CH₃CH₂CH₂OH

3. (CH₃)₃CH

4. CH₃COCH₃

5. CH₃CH₂CO₂CH₂CH₃

6. H₂C=CHCH₂OH

7. C₆H₅CH₂OH

c.
i. What is the coupling constant?
ii. Indicate the number of ions.

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