Full quadrupolar tensor determination by NMR using a micro-crystal spinning at the magic angle.
An implementation of rotor-synchronised Magic Angle Spinning (MAS) NMR is presented to determine the quadrupolar coupling tensor values from a single crystal study for half-integer quadrupolar nuclei. Using a microcoil based probehead for studying micro crystals with superior sensitivity, we successfully determine the full quadrupolar tensor of (23)Na using a micro crystal of dimensions 210 x 210 x 700 mum of NaNO(3) as a model system. A two step simulation procedure is used to obtain the orientation of the quadrupolar tensor information from the experimental spectra and is verified by XRD analysis.
Vasa
Suresh Kumar
SK
Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
van Eck
Ernst R H
ER
Janssen
J W G
JW
Kentgens
Arno P M
AP