IR Spectra Peaks

This is a test to see if one can match up the IR frequencies with the types of stretches that made them.

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  • Created by: BMurWat
  • Created on: 08-12-14 19:47

1. What are the stretches for Esters, Carboxylic Acids/Aldehydes and Ketones, in that order?

  • 1690,1680,1670
  • 1745,1730,1715
  • 1715,1730,1745
  • 1715,1745,1730
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2. Anhydrides and Acid Chlorides both have the same stretch, what is it?

  • 1780-1810
  • 1750-1820
  • 1750-1890
  • 1745-1790

3. What do broad OH peaks mean?

  • Nothing- it's interpreted the same way as a narrow peak
  • There's H bonding present
  • It's a strong signal
  • There's a lot of OH bonds

4. What does a peak between 1640 and 1690 mean?

  • Amide or C double bond C
  • Nitrile group
  • Aromatic ring
  • Ketone

5. What stretches in the region of 1450-1625?

  • C triple bond C
  • Aromatic Rings
  • OH
  • Anhydries

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