Signal enhancement in the triple-quantum magic-angle spinning NMR of spins-3/2 in solids: the FAM-RIACT-FAM sequence
Madhu, P.K. and Levitt, M.H. (2002) Signal enhancement in the triple-quantum magic-angle spinning NMR of spins-3/2 in solids: the FAM-RIACT-FAM sequence. Journal of Magnetic Resonance, 155, (1), 150-155. (doi:10.1006/jmre.2002.2508).
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Description/Abstract
We achieve a significant signal enhancement for the triple-quantum magic-angle spinning NMR of a spin-3/2 system, by using an amplitude-modulated radiofrequency field, followed by a selective 90° pulse and a phase-shifted strong rf field, for the triple-quantum excitation, and an amplitude-modulated radiofrequency field for the conversion of triple-quantum coherence to observable single-quantum coherence. The experiment is demonstrated on the Rb-87 NMR of polycrystalline rubidium nitrate.
| Item Type: | Article |
|---|---|
| ISSNs: | 1090-7807 (print) |
| Related URLs: | |
| Keywords: | nuclear-magnetic-resonance, double frequency sweeps, quadrupolar nuclei, mas-nmr, sensitivity enhancement, amplitude-modulation, coherence transfer, i=3/2 nuclei, mqmas nmr, spectroscopy |
| Subjects: | Q Science > QD Chemistry Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > School of Chemistry |
| Item ID: | 19816 |
| Date Deposited: | 21 Feb 2006 |
| Last Modified: | 01 Jun 2011 13:38 |
| Contributors: | Madhu, P.K. (Author) Levitt, M.H. (Author) |
| Date: | 2002 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/19816 |
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