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  4. High-resolution NMR of hydrogen in organic solids by DNP enhanced natural abundance deuterium spectroscopy
 
research article

High-resolution NMR of hydrogen in organic solids by DNP enhanced natural abundance deuterium spectroscopy

Rossini, Aaron J.  
•
Schlagnitweit, Judith
•
Lesage, Anne
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2015
Journal of Magnetic Resonance

We demonstrate that high field (9.4T) dynamic nuclear polarization (DNP) at cryogenic (similar to 100 K) sample temperatures enables the rapid acquisition of natural abundance H-1-H-2 cross-polarization magic angle spinning (CPMAS) solid-state NMR spectra of organic solids. Spectra were obtained by impregnating substrates with a solution of the stable DNP polarizing agent TEKPol in tetrachloroethane. Tetrachloroethane is a non-solvent for the solids, and the unmodified substrates are then polarized through spin diffusion. High quality natural abundance H-2 CPMAS spectra of histidine hydrochloride monohydrate, glycylglycine and theophylline were acquired in less than 2 h, providing direct access to hydrogen chemical shifts and quadrupolar couplings. The spectral resolution of the H-2 solid-state NMR spectra is comparable to that of H-1 spectra obtained with state of the art homonuclear decoupling techniques. (C) 2015 The Authors. Published by Elsevier Inc.

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Type
research article
DOI
10.1016/j.jmr.2015.08.020
Web of Science ID

WOS:000363358800025

Author(s)
Rossini, Aaron J.  
Schlagnitweit, Judith
Lesage, Anne
Emsley, Lyndon  
Date Issued

2015

Publisher

Academic Press Inc - Elsevier Science

Published in
Journal of Magnetic Resonance
Volume

259

Start page

192

End page

198

Subjects

NMR spectroscopy

•

Deuterium

•

Hyper-polarization

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LRM  
Available on Infoscience
December 2, 2015
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/121170
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