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Aluminum to oxygen cross-polarization in alpha-Al2O3 (corundum)
1Department of Chemistry, University of Illinois at Urbana-Champaign 61801.
Solid State Nuclear Magnetic Resonance
|June 1, 1994
Abstract:
Experimental results concerning the cross-polarization of two quadrupolar, I = 5/2 nuclei are presented. It is shown in particular that 27Al spins in alpha-Al2O3 (corundum) can be spin-locked, and magnetization transferred to the 17O spin system. Cross-polarization between pairs of quadrupolar nuclei can cause considerable signal-to-noise ratio gains over conventional one- (or two-) pulse excitation and should be of use in investigating a number of inorganic solids.