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research article
Longitudinal relaxation pathways in scalar-coupled systems
In applications to systems with resolved scalar couplings, the 2-dimensional exchange expt. (NOESY: nuclear Overhauser effect spectroscopy) can provide greatly increased information if the flip angles of the 2 pulses that precede and follow the mixing interval tm are reduced (typically b ~ 20 Deg). The anal. of the amplitudes of individual signals within diagonal- and cross-peak multiplets allows one to gain insight into a variety of competing longitudinal relaxation mechanisms, not only for the fast- and slow-motion limits but also, in favorable cases, for crit. correlation times. [on SciFinder (R)]
Type
research article
Authors
Publication date
1989
Published in
Volume
81
Issue
1
Start page
13
End page
42
Peer reviewed
REVIEWED
Available on Infoscience
February 22, 2006
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