Exercises involving IR and H NMR spectroscopy.

Below are IR and H NMR spectra of unknown molecules. Identify the molecule by drawing its structural formula.

This unit of work was adapted from http://orgchem.colorado.edu/Spectroscopy/Problems/ accessed on 12/03/2016 9.00 pm

  

Exercise 1

Solution

Exercise 2


Solution

Exercise 3


Solution

Exercise 4


Solution

Exercise 5


Solution

Exercise 6
(a bit challenging)

Solution

Identify, with reasons, the IR spectra of the following compounds

• propanoic acid:
• methyl ethanoate:
• hydroxypropanone: (CH3COCH2OH)

 Solution