Titre :

Improved resolution for spin-3/2 isotopes in solids via the indirect NMR detection of triple-quantum coherences using the T-HMQC sequence

Auteur(s) :

Bayzou, Racha [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Trebosc, Julien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Hung, Ivan [Auteur]
National High Magnetic Field Laboratory [NHMFL]
Gan, Zhehong [Auteur]
National High Magnetic Field Laboratory [NHMFL]
Rankin, Andrew [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Lafon, Olivier [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
UCCS Équipe RMN et matériaux inorganiques [RM2I]
Amoureux, Jean-Paul [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
UCCS Équipe RMN et matériaux inorganiques [RM2I]

Titre de la revue :

Solid State Nuclear Magnetic Resonance

Nom court de la revue :

Solid State Nucl Magn Reson

Numéro :

122

Pagination :

101835

Éditeur :

Elsevier

Date de publication :

2022-11-03

ISSN :

1527-3326

Discipline(s) HAL :

Chimie/Chimie inorganique

Résumé en anglais : [en]

The indirect NMR detection of quadrupolar nuclei in solids under magic-angle spinning (MAS) is possible with the through-space HMQC (heteronuclear multiple-quantum coherence) scheme incorporating the TRAPDOR (transfer of ...
Lire la suite >The indirect NMR detection of quadrupolar nuclei in solids under magic-angle spinning (MAS) is possible with the through-space HMQC (heteronuclear multiple-quantum coherence) scheme incorporating the TRAPDOR (transfer of population in double-resonance) dipolar recoupling. This sequence, called T-HMQC, exhibits limited t1-noise. In this contribution, with the help of numerical simulations of spin dynamics, we show that most of the time, the fastest coherence transfer in the T-HMQC scheme is achieved when TRAPDOR recoupling employs the highest radiofrequency (rf) field compatible with the probe specifications. We also demonstrate how the indirect detection of the triple-quantum (3Q) coherences of spin-3/2 quadrupolar nuclei in solids improves the spectral resolution for these isotopes. The sequence is then called T-HMQC3. We demonstrate the gain in resolution provided by this sequence for the indirect proton detection of 35Cl nuclei in l-histidine∙HCl and l-cysteine∙HCl, as well as that of 23Na isotope in NaH2PO4. These experiments indicate that the gain in resolution depends on the relative values of the chemical and quadrupolar-induced shifts (QIS) for the different spin-3/2 species. In the case of NaH2PO4, we show that the transfer efficiency of the T-HMQC3 sequence employing an rf-field of 80 kHz with a MAS frequency of 62.5 kHz reaches 75% of that of the t1-noise eliminated (TONE) dipolar-mediated HMQC (D-HMQC) scheme.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Projet ANR :

Amélioration raisonnée de la conductivité des films minces de LiPON en élucidant leur structure à l'échelle atomique

Autre(s) projet(s) ou source(s) de financement :

Chevreul Institute (FR 2638)
Ministère de l’Enseignement Supérieur de la Recherche et de l’Innovation
Région Hauts de France
FEDER
R-RMN-THC FR-3050 CNRS
T-UEPEARL-20-005-LAFON-HAMDOUNA (NMR-MECA-DRUG)
National Science Foundation through NSF/DMR-1644779
State of Florida to the National High Magnetic Field Laboratory

Établissement(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Équipe(s) de recherche :

RMN et matériaux inorganiques (RM2I)

Date de dépôt :

2023-05-03T00:19:15Z
2023-05-10T08:58:54Z
2023-11-24T09:32:42Z