Selective HOESY experiments for stereochemical determinations
Identifieur interne : 002377 ( Istex/Curation ); précédent : 002376; suivant : 002378Selective HOESY experiments for stereochemical determinations
Auteurs : Mehdi Yemloul [France] ; Sabine Bouguet-Bonnet [France] ; Lalla Aïcha Ba [France] ; Gilbert Kirsch [France] ; Daniel Canet [France]Source :
- Magnetic Resonance in Chemistry [ 0749-1581 ] ; 2008-10.
English descriptors
- Teeft :
- Actual isomer, Chem, Continuous proton decoupling, Dante pulse train, Dipolar interactions, Equilibrium magnetization, Experimental data, Experimental methods, Heteronuclear overhauser effect spectroscopy, Hoesy, Independent measurements, Initial slope, Interatomic, Interatomic distances, Isomer, John wiley sons, Magn, Nuclear overhauser effect, Phase cycle, Phase cycling, Proton, Relaxation rates, Relevant part, Remote carbons, Reson, Selective experiment, Selective hoesy experiments, Sensitivity reasons, Single experiment, Solomon equations, Systematic error.
Abstract
Heteronuclear Overhauser effect spectroscopy (HOESY) is a powerful method for tracking geometrical proximities between two heteronuclei (for instance, 1H and 13C, as this will be the case here). The method is based on cross‐relaxation arising from dipolar interactions. Sensitivity permitting, it is applied in the 2D mode yielding all spatial correlations in a single experiment. Whenever sensitivity is not sufficient, it can be applied in the one‐dimensional mode by selectively inverting one particular proton. In that case, it yields, from the carbon‐13 spectrum, remote spatial correlations. The method has been employed here for the discrimination between two possible E or Z isomers in a medium‐size molecule. Copyright © 2008 John Wiley & Sons, Ltd.
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DOI: 10.1002/mrc.2283
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unit="page" from="939">939</biblScope><biblScope unit="page" to="942">942</biblScope><biblScope unit="page-count">4</biblScope><publisher>John Wiley & Sons, Ltd.</publisher><pubPlace>Chichester, UK</pubPlace><date type="published" when="2008-10">2008-10</date></imprint><idno type="ISSN">0749-1581</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0749-1581</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="Teeft" xml:lang="en"><term>Actual isomer</term><term>Chem</term><term>Continuous proton decoupling</term><term>Dante pulse train</term><term>Dipolar interactions</term><term>Equilibrium magnetization</term><term>Experimental data</term><term>Experimental methods</term><term>Heteronuclear overhauser effect spectroscopy</term><term>Hoesy</term><term>Independent measurements</term><term>Initial slope</term><term>Interatomic</term><term>Interatomic distances</term><term>Isomer</term><term>John wiley sons</term><term>Magn</term><term>Nuclear overhauser effect</term><term>Phase cycle</term><term>Phase cycling</term><term>Proton</term><term>Relaxation rates</term><term>Relevant part</term><term>Remote carbons</term><term>Reson</term><term>Selective experiment</term><term>Selective hoesy experiments</term><term>Sensitivity reasons</term><term>Single experiment</term><term>Solomon equations</term><term>Systematic error</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Heteronuclear Overhauser effect spectroscopy (HOESY) is a powerful method for tracking geometrical proximities between two heteronuclei (for instance, 1H and 13C, as this will be the case here). The method is based on cross‐relaxation arising from dipolar interactions. Sensitivity permitting, it is applied in the 2D mode yielding all spatial correlations in a single experiment. Whenever sensitivity is not sufficient, it can be applied in the one‐dimensional mode by selectively inverting one particular proton. In that case, it yields, from the carbon‐13 spectrum, remote spatial correlations. The method has been employed here for the discrimination between two possible E or Z isomers in a medium‐size molecule. Copyright © 2008 John Wiley & Sons, Ltd.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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