The goal of this puzzle is to distinguish between strong coupling and peak overlap.
For the following 1H NMR spectrum, are the 1H signals at 7.58-7.59 ppm exhibiting strong coupling or are they two overlapping multiplets or both?
P2C2E Search Blog
Recent Posts
- Logic Puzzle #30: Unknown Coupling Pattern … Solution
- Blog on Hiatus from May 18 to 27
- Logic Puzzle #30: Unknown Coupling Pattern
- Logic Puzzle #29: Adjusting the Threshold … Solution
- Blog on Hiatus April 16 to 20
- Logic Puzzle #29: Adjusting the Threshold
- Logic Puzzle #28: Interference from the Solvent … Solution
- Logic Puzzle #28: Interference from the Solvent
- Logic Puzzle #27: Recognizing the Protonated Carbon … Solution
- Blog on Hiatus March 11 to 16
About Me
Subscribe to P2C2E
P2C2E RSS
« Logic Puzzle #7: Almost Missed It … Solution 2 | Main | Logic Puzzle #8: Strong Coupling or Peak Overlap? … Solution »
October 04, 2010
TrackBack
TrackBack URL for this entry:
http://www.typepad.com/services/trackback/6a00d834fe3a5753ef013487f6464f970c
Listed below are links to weblogs that reference Logic Puzzle #8: Strong Coupling or Peak Overlap?:
Comments
You can follow this conversation by subscribing to the comment feed for this post.
Verify your Comment
Previewing your Comment
This is only a preview. Your comment has not yet been posted.
Your comment could not be posted. Error type:
Your comment has been saved. Comments are moderated and will not appear until approved by the author. Post another comment
As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.
Having trouble reading this image? View an alternate.
It does not look like exclusively strong coupling to me. For that magnitude of roofing I would expect the partner at about 7.7 ppm or closer.
Other than classic experiments, a pure shift spectrum would help interpreting overlap situations.
Posted by: Adolfo | October 04, 2010 at 02:23 PM