A new solid-state MAS NMR experiment is described that recovers the dipolar interaction between spin-l/2 nuclei and quadrupolar nuclei spin pairs. This technique combines the principles of rotational-echo, double-resonance (REDOR) NMR and transfer-of-populations-double-resonance (TRAPDOR) NMR. Dipol
Measurement of Heteronuclear Dipolar Interactions between Quadrupolar and Spin-1/2 Nuclei in Solids by Multiple-Quantum REDOR NMR
โ Scribed by Fernandez, C.; Lang, D. P.; Amoureux, J. P.; Pruski, M.
- Book ID
- 126892866
- Publisher
- American Chemical Society
- Year
- 1998
- Tongue
- English
- Weight
- 44 KB
- Volume
- 120
- Category
- Article
- ISSN
- 0002-7863
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๐ SIMILAR VOLUMES
We present the transferred echo double-resonance multiple-quantum MAS (TEDOR-MQMAS) method that allows to analyze under high resolution the through-bond connectivities between spin-1/2 and quadrupolar nuclei. This method avoids some of the limitations related to the spin-lock of half-integer quadrup
ุ1 , respectively. The results for the residual dipolar interactions were verified by repeating the above measurements at a temperature of 1.5ยฐC, where the spectra of the H 2 O molecules were well resolved, so that the 1 H-1 H dipolar interaction could be determined directly from the observed splitt