Multiple-quantum magic-angle spinning NMR with cross-polarization: Spectral editing of high-resolution spectra of quadrupolar nuclei

An experiment is presented that combines the multiple-quantum magic-angle spinning (MQMAS) technique with cross-polarization (CP). As a preliminary test of this new method, we measured and compared the 27Al 3QMAS and 19F → 27A1 CP 3QMAS spectra of a fluorinated AlPO 4 aluminophosphate. Complete disc...

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Bibliographic Details
Published in:Solid state nuclear magnetic resonance 1997-02, Vol.7 (4), p.327-331
Main Authors: Pruski, M., Lang, D.P., Fernandez, C., Amoureux, J.P.
Format: Article
Language:English
Subjects:
Aluminophosphate
Cross-polarization
Magnetic Resonance Spectroscopy
Multiple-quantum MAS NMR of quadrupolar nuclei
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Summary:An experiment is presented that combines the multiple-quantum magic-angle spinning (MQMAS) technique with cross-polarization (CP). As a preliminary test of this new method, we measured and compared the 27Al 3QMAS and 19F → 27A1 CP 3QMAS spectra of a fluorinated AlPO 4 aluminophosphate. Complete discrimination between the fluorinated and nonfluorinated Al sites was easily achieved, which demonstrates the usefulness of CP MQMAS for spectral editing. Future applications of this experiment will include other spin pairs and heteronuclear correlation NMR spectroscopy.
ISSN:0926-2040
1527-3326
DOI:10.1016/S0926-2040(96)01284-2