Document Detail

A combined 17O RAPT and MQ-MAS NMR study of L-leucine.
MedLine Citation:
PMID:  16293400     Owner:  NLM     Status:  MEDLINE    
We report the application of rotor-assisted population transfer (RAPT) to measure the quadrupolar coupling constant (C(q)) for spin 5/2 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 (eta(q)). Unlike previous reports, the O17 NMR parameters for an amino acid, L-leucine, is reported at a relatively low field of 9.4 T.
Subramanian Prasad; Ted M Clark; Ramesh Sharma; Hyung-Tae Kwak; Philip J Grandinetti; Herbert Zimmermann
Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2005-11-15
Journal Detail:
Title:  Solid state nuclear magnetic resonance     Volume:  29     ISSN:  0926-2040     ISO Abbreviation:  Solid State Nucl Magn Reson     Publication Date:  2006 Feb 
Date Detail:
Created Date:  2005-12-19     Completed Date:  2006-03-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9306181     Medline TA:  Solid State Nucl Magn Reson     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  119-24     Citation Subset:  IM    
Department of Chemistry, The Ohio State University, 120 W. 18th Avenue, Columbus, OH 43210-1173, USA.
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MeSH Terms
Computer Simulation
Leucine / analysis*,  chemistry*
Magnetic Resonance Spectroscopy / methods*
Models, Chemical*
Oxygen Isotopes / analysis*,  chemistry*
Reg. No./Substance:
0/Oxygen Isotopes; 61-90-5/Leucine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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