Department of Chemistry,
University of Alberta December
NMR News 2007-04
News and tips from the NMR support group for users of the Varian NMR systems in the Department
Editor: Albin.Otter@ualberta.ca http://nmr.chem.ualberta.ca
Update 2022 - obsolete information removed.
Other content of this NMR News is no longer meaningful and has been removed May 2010.
New form for sample submission
|FAQ 2007.04-1: zero NOE - how is that possible?|
||Almost every NMR user
knows that the Nuclear Overhauser Effect (NOE) depends on the inverse 6th
power of the distance between protons.
Far less known is the fact that, irrespective of distance, the NOE can be zero if certain conditions are met. This subject has been discussed as FAQ 98.08-1: NOESY, ROESY and TROESY: what is the difference?
In the Figure on the left a different approach to the same problem is presented. For a more detailed discussion, click on the image for a PDF file with explanations and a better quality graph.
(*) Financing of the new equipment by the Alberta Ingenuity Center for Carbohydrate Science is gratefully acknowledged.
top of page NMR News