We demonstrate the utility of a two-pulse sequence in obtaining high-resolution solid state NMR spectra of half-integer quadrupolar nuclei with magic-angle-spinning (MAS). The experiment, which utilizes multiple/single-quantum correlation, was first described in a different form by Frydman and Harwo
Multiple-quantum MAS nutation NMR spectroscopy of quadrupolar nuclei
✍ Scribed by Niels Chr Nielsen; Henrik Bildsøe; Hans J Jakobsen
- Book ID
- 107798619
- Publisher
- Elsevier Science
- Year
- 1992
- Weight
- 901 KB
- Volume
- 97
- Category
- Article
- ISSN
- 0022-2364
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📜 SIMILAR VOLUMES
From two-dimensional multiquantum NMR spectra of quadrupolar nuclei, it is now possible to obtain much greater resolution than in a classical single-quantum magic-angle spinning or variable-angle spinning spectrum. We describe here a very simple pulse scheme which efficiently excites the desired mul
The optimization of the coherence transfers involved in five, seven and nine-quantum versions of the recently discovered MQMAS technique, is analysed numerically. Data reported in this paper may serve as starting parameters for the experiment set up. An analysis of the intensity and resolution given