|
authors |
Mafra, L; Coelho, C; Siegel, R; Rocha, J |
|
nationality |
International |
|
journal |
JOURNAL OF MAGNETIC RESONANCE |
|
author keywords |
High-resolution H-1 CRAMPS; Solid-state NMR; Homonuclear decoupling; Homonuclear interaction; H-1-H-1 dipolar couplings; wDUMBO; wPMLG3; High-field NMR; Very-fast MAS |
|
keywords |
NUCLEAR-MAGNETIC-RESONANCE; HIGH-RESOLUTION H-1-NMR; MULTIPLE-PULSE NMR; ANGLE-SPINNING NMR; STATE NMR; DECOUPLING SEQUENCES; SPECTROSCOPY; ROTATION; SYMMETRY |
|
abstract |
The performance of various high-resolution 1D H-1 CRAMPS pulse schemes at moderate and high static magnetic fields (400 MHz and 800 H-1 Larmor frequencies) and spinning rates up to 35 kHz, using state-of-the-art electronics is compared. The performance of the H-1 windowed acquisition decoupling schemes, wDUMBO, wPMLG3 and wSAM3 is investigated using their effective z-rotation variants on glycine and other small biological molecules, tripeptide reduced glutathione and nucleoside uridine. H-1 CRAMPS spectra, recorded with windowed H-1-H-1 decoupling methods and fast MAS (35 kHz) and high-field are reported for the first time. H-1 spectra exhibiting outstanding resolution and completely free from any artifact are also shown. The effect on spectra quality of the decoupling rf cycle and rotor periods ratio (tau(C)/tau(R)) and the power requirements needed for each windowed H-1 CRAMPS methods are discussed. (C) 2008 Elsevier Inc. All Fights reserved. |
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publisher |
ACADEMIC PRESS INC ELSEVIER SCIENCE |
|
issn |
1090-7807 |
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year published |
2009 |
|
volume |
197 |
|
issue |
1 |
|
beginning page |
20 |
|
ending page |
27 |
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digital object identifier (doi) |
10.1016/j.jmr.2008.11.010 |
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web of science category |
Biochemical Research Methods; Physics, Atomic, Molecular & Chemical; Spectroscopy |
|
subject category |
Biochemistry & Molecular Biology; Physics; Spectroscopy |
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unique article identifier |
WOS:000263987500004
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