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research article

Solvent suppression in DNP enhanced solid state NMR

Yarava, Jayasubba Reddy  
•
Chaudhari, Sachin Rama
•
Rossini, Aaron J.  
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2017
Journal of Magnetic Resonance

We show how DNP enhanced solid-state NMR spectra can be dramatically simplified by suppression of solvent signals. This is achieved by (i) exploiting the paramagnetic relaxation enhancement of solvent signals relative to materials substrates, or (ii) by using short cross-polarization contact times to transfer hyperpolarization to only directly bonded carbon-13 nuclei in frozen solutions. The methods are evaluated for organic microcrystals, surfaces and frozen solutions. We show how this allows for the acquisition of high-resolution DNP enhanced proton-proton correlation experiments to measure inter-nuclear proximities in an organic solid. (C) 2017 The Author(s). Published by Elsevier Inc.

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Type
research article
DOI
10.1016/j.jmr.2017.02.016
Web of Science ID

WOS:000399861500019

Author(s)
Yarava, Jayasubba Reddy  
Chaudhari, Sachin Rama
Rossini, Aaron J.  
Lesage, Anne
Emsley, Lyndon  
Date Issued

2017

Publisher

Academic Press Inc - Elsevier Science

Published in
Journal of Magnetic Resonance
Volume

277

Start page

149

End page

153

Subjects

Solid-state NMR

•

DNP

•

Solvent suppression

•

Paramagnetic relaxation enhancement (PRE)

•

Relaxation filters

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LRM  
Available on Infoscience
May 30, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/138000
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