| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5420982 | Solid State Nuclear Magnetic Resonance | 2006 | 6 Pages |
Abstract
We report the application of rotor-assisted population transfer (RAPT) to measure the quadrupolar coupling constant (Cq) for spin 52 nuclei. Results from numerical simulations are presented on the magnitude of enhancement factor as a function of frequency offsets, i.e. the RAPT profile. Experimental O17 RAPT profile is traced for the amino acid l-leucine. In addition, results from MQ-MAS experiments are incorporated to determine the quadrupolar asymmetry parameter (ηq). Unlike previous reports, the O17 NMR parameters for an amino acid, l-leucine, is reported at a relatively low field of 9.4 T.
Keywords
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Subramanian Prasad, Ted M. Clark, Ramesh Sharma, Hyung-Tae Kwak, Philip J. Grandinetti, Herbert Zimmermann,