Two-dimensional solid-state nutation NMR of half-integer quadrupolar nuclei
β Scribed by A.P.M Kentgens; J.J.M Lemmens; F.M.M Geurts; W.S Veeman
- Publisher
- Elsevier Science
- Year
- 1987
- Weight
- 975 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0022-2364
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π SIMILAR VOLUMES
By combination of fast magic-angle spinning (MAS) and detection of the free-induction decay during a rotor-synchronized quadrupolar Carr-Purcell-Meiboom-Gill (QCPMG) train of refocusing pulses, the sensitivity of quadrupolar-echo MAS NMR spectra for the central transition of half-integer quadrupolar
Three population transfer techniques for improving the sensitivity of the central transition of NMR spectra from half-integer quadrupolar nuclei in the solid state are described. Two of the methods attempt to invert the populations of energy levels associated with the satellite transitions either by
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