Two-dimensional magic-angle spinning isotropic reconstruction sequences for quadrupolar nuclei

Two-dimensional magic-angle spinning (triple quantum, single quantum) correlation pulse sequences and phase cycles based on the technique of Frydman and Harwood for the reconstruction of the isotropic spectrum of half-integer spin quadrupolar nuclei broadened to second-order are described. These seq...

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Bibliographic Details
Published in:Solid state nuclear magnetic resonance 1996-02, Vol.6 (1), p.73-83
Main Authors: Massiot, D., Touzo, B., Trumeau, D., Coutures, J.P., Virlet, J., Florian, P., Grandinetti, P.J.
Format: Article
Language:English
Subjects:
Absorption
Algorithms
Aluminum - chemistry
Aluminum Silicates - chemistry
Crystallization
Crystallography
Isotopes
Isotropic spectrum
Magnetic Resonance Spectroscopy - methods
Multiple quantum
Nitrates
Pure absorption mode lineshape
Quadrupolar nucleus
Rubidium - chemistry
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Summary:Two-dimensional magic-angle spinning (triple quantum, single quantum) correlation pulse sequences and phase cycles based on the technique of Frydman and Harwood for the reconstruction of the isotropic spectrum of half-integer spin quadrupolar nuclei broadened to second-order are described. These sequences provide pure absorption mode two-dimensional lineshapes and increased sensitivity. Experimental examples on spin I = 3/2 ( 87Rb in RbNO 3) and I = 5/2 ( 27Al in NaSi 3AlO 8) are presented. The isotropic chemical shift and quadrupolar coupling parameters could be obtained from a simple analysis of the triple quantum filtered single quantum magic-angle spinning cross-sections.
ISSN:0926-2040
1527-3326
DOI:10.1016/0926-2040(95)01210-9