High-resolution solid-state n.m.r. spectra of quadrupolar nuclei: magic-angle and off-axis spinning of vansdhaum-51 (I= 7/2) in sodium and ammonium metavanadates

Abstract
We report the first observation of high-resolution solid-state n.m.r. spectra of the quadrupolar transition metal nucleus vanadium-51, in NH4[51VO3] and Na[51VO3], by means of rapid ‘magic-angle’ and off-axis' spinning experiments; the results indicate the general feasibility of obtaining high-resolution solid-state n.m.r. spectra of quadrupolar nuclei having large chemical shift (ca.103p.p.m.) and quadrupole (e2qQ/h ca. 3–5 MHz) interactions.

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