The D-HMQC MAS-NMR technique: An efficient tool for the editing of through-space correlation spectra between quadrupolar and spin-1/2 (<sup>31</sup>P, <sup>29</sup>Si, <sup>1</sup>H, <sup>13</sup>C) nuclei - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Annual Reports on NMR Spectroscopy Année : 2014

The D-HMQC MAS-NMR technique: An efficient tool for the editing of through-space correlation spectra between quadrupolar and spin-1/2 (31P, 29Si, 1H, 13C) nuclei

Résumé

The D-HMQC (dipolar heteronuclear multiple-quantum coherence) technique is a recently developed NMR pulse sequence particularly suitable for the investigation of spatial proximity between quadrupolar and spin-1/2 nuclei. Compared to the cross-polarisation magic-angle spinning technique applied to a quadrupolar nucleus, D-HMQC does not require time-consuming optimisations and exhibits on the quadrupolar spin a better robustness to irradiation offset and to Cq values and radiofrequency field. Furthermore, the high robustness to irradiation offset makes of the D-HMQC sequence the technique of choice for the structural characterisation of materials especially at high magnetic field. We show here how the D-HMQC can be easily implemented and optimised to give access to the structural analysis of silicate-, phosphate-, carbon- and proton-containing materials. An emphasis will be on describing the most popular dipolar recoupling schemes that can be used in that sequence and providing their advantages and drawbacks.
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Dates et versions

hal-01168241 , version 1 (25-06-2015)

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G. Tricot, J. Trébosc, F. Pourpoint, R. Gauvin, L. Delevoye. The D-HMQC MAS-NMR technique: An efficient tool for the editing of through-space correlation spectra between quadrupolar and spin-1/2 (31P, 29Si, 1H, 13C) nuclei. Annual Reports on NMR Spectroscopy, 2014, 81, pp.145 - 184. ⟨10.1016/B978-0-12-800185-1.00004-8⟩. ⟨hal-01168241⟩
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