Join TSR now and get all your revision questions answeredSign up now

Proton NMR for aromatic compounds Watch

    • Thread Starter
    Offline

    3
    ReputationRep:
    Hi, just wondering have I counted the proton environments right for this molecule? Name:  hahhaa.png
Views: 50
Size:  25.7 KBI got 5 different hydrogen environments. Attachment 580940580942 For the peak with area of 5, I have no clue how you can get that from the molecule. The answer says the peak is produced from the protons in the benzene ring, but I really don't see how...

    Also is this right? Name:  qqqq.png
Views: 46
Size:  16.0 KB
    Thanks
    Attached Images
     
    Offline

    3
    (Original post by coconut64)
    Hi, just wondering have I counted the proton environments right for this molecule? Name:  qqqq.png
Views: 46
Size:  16.0 KB I got 4 different hydrogen environments. Attachment 580940580942 For the peak with area of 5, I have no clue how you can get that from the molecule. The answer says the peak is produced from the protons in the benzene ring, but I really don't see how...


    Thanks
    Are you sure that was compound K?

    Anyways, the environments on the ring can overlap, being very close together.
    • Thread Starter
    Offline

    3
    ReputationRep:
    (Original post by EricPiphany)
    Are you sure that was compound K?

    Anyways, the environments on the ring can overlap, being very close together.
    I made a mistake, I have just edited it. Thanks
    Offline

    3
    (Original post by coconut64)
    I made a mistake, I have just edited it. Thanks
    So, as I said, you can reason from the integration (and the δ value) in this case, as the ring environments tend to be very close and overlap sometimes.
    • Thread Starter
    Offline

    3
    ReputationRep:
    (Original post by EricPiphany)
    So, as I said, you can reason from the integration (and the δ value) in this case, as the ring environments tend to be very close and overlap sometimes.
    Oh okay but have I counted my hydrogen environments right for both molecules? Thx
    Offline

    3
    (Original post by coconut64)
    Oh okay but have I counted my hydrogen environments right for both molecules? Thx
    Yes.
 
 
 
Poll
Do you honestly judge a book by its cover?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.