NMR detection using laser-polarized xenon as a dipolar sensor

TitleNMR detection using laser-polarized xenon as a dipolar sensor
Publication TypeJournal Article
Year of Publication2005
AuthorsGranwehr J., Urban J.T, Trabesinger A.H, Pines A
JournalJournal of Magnetic Resonance
Volume176
Issue2
Pagination125-139
Date PublishedOct
ISBN Number1090-7807
Accession NumberWOS:000232425800001
Keywordsdynamics
Abstract

Hyperpolarized Xe-129 can be used as a sensor to indirectly detect NMR spectra of heteronuclei that are neither covalently bound nor necessarily in direct contact with the Xe atoms, but coupled through long-range intermolecular dipole-dipole interactions. To reintroduce long-range dipolar couplings the sample symmetry has to be broken. This can be done either by using an asymmetric sample arrangement, or by breaking the symmetry of the spin magnetization with field gradient pulses. Experiments are performed where only a small fraction of the available Xe-129 magnetization is used for each point, so that a single batch of xenon suffices for the point-by-point acquisition of a heteronuclear NMR spectrum. Examples with H-1 as the analyte nucleus show that these methods have the potential to obtain spectra with a resolution that is high enough to determine homonuclear J couplings. The applicability of this technique with remote detection is discussed. Published by Elsevier Inc.

URL<Go to ISI>://WOS:000232425800001
DOI10.1016/J.Jmr.2005.05.013
Short TitleNMR detection using laser-polarized xenon as a dipolar sensor
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