« Logic Puzzle #13: Extra Correlations on the HSQC Spectrum … Solution | Main | Logic Puzzle #14: No Bias this Time Please … Solution »

March 08, 2011


Feed You can follow this conversation by subscribing to the comment feed for this post.


What is the distance, in Hz, between the two protons in the F2 dimension?


Hello Rodri,

I added the instrument frequency to the image.



Rajdip Vansadiya

For this situation you must be correlate with DEPTH-135 to 13-carbon and confirm that whether it belongs to CH or CH2.

Rajdip Vansadiya
NMR and Mass Scientist


Thanks for the info on the spectrometer frequency.
With that info, it seems to me that the two protons cannot be attached to the same carbon. Typically, a geminal J1(H-H) coupling is a large negative value, but not as large as the splitting we can see in this case (> 50 Hz?)


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

The letters and numbers you entered did not match the image. Please try again.

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.


Post a comment

Comments are moderated, and will not appear until the author has approved them.

Your Information

(Name is required. Email address will not be displayed with the comment.)