G-SERF editing in two-dimensional pure shift TOCSY: Scalar coupling measurements for a group of spins in organic molecules

G-SERF editing in two-dimensional pure shift TOCSY: Scalar coupling measurements for a group of spins in organic molecules

A novel G-SERF-PSYCHE-TOCSY NMR pulse scheme has been proposed, which produces TOCSY chemical shift correlations, on one hand, and scalar coupling values for the spins scalarly coupled to irradiated resonances, by showing them as doublets along the indirect dimension, on the other. Therefore, record...

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Bibliographic Details
Published in:Chemphyschem
Main Authors: Kakita, Veera Mohana Rao, Joshi, Mamata V, Hosur, Ramakrishna V
Format: Journal Article
Language:English
Published: Germany 18-04-2019
Subjects:
G-SERF
homodecoupling
PSYCHE-TOCSY
organic molecules
scalar couplings
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Summary:A novel G-SERF-PSYCHE-TOCSY NMR pulse scheme has been proposed, which produces TOCSY chemical shift correlations, on one hand, and scalar coupling values for the spins scalarly coupled to irradiated resonances, by showing them as doublets along the indirect dimension, on the other. Therefore, recording such an experiment, for a group of spins with overlapping chemical shifts, in organic molecules can adequately provide scalar coupling information in a G-SERF manner along the indirect dimensions, and they can be assigned to particular spin pairs. Such COSY chemical shift correlations (which appear as doublets for the scalarly coupled spins) can be readily discriminated from the TOCSY peaks (which do not show such splitting) in the G-SERF-PSYCHE-TOCSY spectrum.
ISSN:1439-7641