Selective Homonuclear Hartmann-Hahn for 13C -> 13C Polarization Transfer in Solution State NMR
Résumé
Polarization transfer has become a commonplace technique for the enhancement of a variety of nuclei in high field nuclear magnetic resonance (NMR). In this paper we re-visit the homonuclear Hartmann-Hahn method for polarization transfer and show that a 90% transfer of polarization can be achieved experimentally between a pair of scalar coupled 13C nuclei in a sample of isotopically enriched glycine. This may show particular utility in the field of dynamic nuclear polarization (DNP) and could be used as an addendum to already established DNP techniques allowing the favourable enhancement to be 'stored' on long-lived nuclei and subsequently transferred to shorter-lived nuclei prior to observation.
Origine : Fichiers produits par l'(les) auteur(s)
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