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H nmr

  1. Oct 31, 2008 #1
    1. The problem statement, all variables and given/known data
    I have a 3 compounds with the same formula: C6H12O2
    I need to find the molecules by interpreting the H NMR spectroscopy

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    3. The attempt at a solution
    I've tried so many structures that it would be pointless to name them off.
     
  2. jcsd
  3. Oct 31, 2008 #2

    Borek

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    Staff: Mentor

    Don't start with structures - start with the spectrum. What does integration tell you about number of hydrogens? What does formula tell about saturation?
     
  4. Oct 31, 2008 #3
    Well I know (atleast I think) the integrations;
    1st graph: 2:3:2:2:3; One degree of unsaturation
    2nd graph: 1:3:2:3:3; One degree of unsaturation
    3rd graph: 1:3; One degree of unsaturation

    But then I can't put everything together. I spend atleast an hour one each of these but can't figure out there connectivity.
     
  5. Oct 31, 2008 #4

    Borek

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    Staff: Mentor

    3rd seems to be the simplest. 1:3 - you have two types of protons. How many of each type?
     
  6. Oct 31, 2008 #5
    Each spike counts as 3 Hydrogens...so a CH3 and then 4 CH3?
     
  7. Oct 31, 2008 #6
    I figured them out. Thanks for the help.
     
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