Problem: Construct a simulated 1H NMR spectrum for methyl propanoate. Assume that the hydroxyl proton is not coupled with any other protons. Drag the appropriate splitting patterns to the approximate chemical shift positions. Splitting patterns may be used more than once, or not at all, as needed. Likewise, some chemical shift bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.

FREE Expert Solution

The chemical shift indicates the exact electrochemical environment that each proton is experiencing. 

  • In general, electronegative groups will pull electrons away from nuclei, deshielding them 
  • Shifts increase (move downfield) as protons become more deshielded
  • Splitting: n+1 Rule → where n is the number of adjacent H.
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Problem Details

Construct a simulated 1H NMR spectrum for methyl propanoate. Assume that the hydroxyl proton is not coupled with any other protons. Drag the appropriate splitting patterns to the approximate chemical shift positions. Splitting patterns may be used more than once, or not at all, as needed. Likewise, some chemical shift bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.

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