scholarly journals Endogenous Dynamic Nuclear Polarization for Natural Abundance 17O and Lithium NMR in the Bulk of Inorganic Solids

2018 ◽  
Vol 141 (1) ◽  
pp. 451-462 ◽  
Author(s):  
Tamar Wolf ◽  
Sandeep Kumar ◽  
Harishchandra Singh ◽  
Tanmoy Chakrabarty ◽  
Fabien Aussenac ◽  
...  
Keyword(s):  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
Natural Abundance ◽  
Inorganic Solids ◽  
Lithium Nmr

scholarly journals Hyperpolarized NMR of plant and cancer cell extracts at natural abundance

The Analyst ◽  
2015 ◽  
Vol 140 (17) ◽  
pp. 5860-5863 ◽  
Author(s):  
Jean-Nicolas Dumez ◽  
Jonas Milani ◽  
Basile Vuichoud ◽  
Aurélien Bornet ◽  
Julie Lalande-Martin ◽  
...  
Keyword(s):  
Cancer Cell ◽  
Dynamic Nuclear Polarization ◽  
Nmr Spectra ◽  
Nuclear Polarization ◽  
2D Nmr ◽  
Natural Abundance ◽  
Cross Polarization ◽  
Cell Extracts ◽  
Biological Extracts ◽  
2D Nmr Spectra

Natural abundance 13C 1D and 2D NMR spectra of biological extracts are recorded in a single scan for samples hyperpolarised by dissolution dynamic nuclear polarization combined with cross polarization.

scholarly journals Natural Abundance Oxygen-17 Solid-State NMR of Metal Organic Frameworks Enhanced by Dynamic Nuclear Polarization

2020 ◽  
Author(s):  
Diego Carnevale ◽  
Georges Mouchaham ◽  
Sujing Wang ◽  
Mathieu Baudin ◽  
Christian Serre ◽  
...  
Keyword(s):  
Dynamic Nuclear Polarization ◽  
Density Functional ◽  
Nuclear Polarization ◽  
Chemical Shifts ◽  
Metal Organic Frameworks ◽  
Magic Angle Spinning ◽  
Natural Abundance ◽  
Magic Angle ◽  
Metal Organic ◽  
Angle Spinning

The <sup>17</sup>O resonances of Zirconium-oxo clusters that can be found in porous Zr carboxylate metal-organic frameworks (MOFs) have been investigated by magic-angle spinning (MAS) NMR spectroscopy enhanced by dynamic nuclear polarization (DNP). High-resolution <sup>17</sup>O spectra at 0.037 % natural abundance could be obtained in 48 hours, thanks to DNP enhancement of the <sup>1</sup>H polarization by factors e(<sup>1</sup>H) = S<sub>with</sub>/S<sub>without </sub>= 28, followed by <sup>1</sup>H®<sup>17</sup>O cross-polarization, allowing a saving in experimental time by a factor of <i>ca</i>. 800. The distinct <sup>17</sup>O sites from the oxo-clusters can be resolved at 18.8 T. Their assignment is supported by density functional theory (DFT) calculations of chemical shifts and quadrupolar parameters.

scholarly journals Dynamic Nuclear Polarization NMR Enables the Analysis of Sn-Beta Zeolite Prepared with Natural Abundance 119Sn Precursors

2014 ◽  
Vol 136 (17) ◽  
pp. 6219-6222 ◽  
Author(s):  
William R. Gunther ◽  
Vladimir K. Michaelis ◽  
Marc A. Caporini ◽  
Robert G. Griffin ◽  
Yuriy Román-Leshkov
Keyword(s):  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
Natural Abundance ◽  
Beta Zeolite

Paramagnetic Metal-Ion Dopants as Polarization Agents for Dynamic Nuclear Polarization NMR Spectroscopy in Inorganic Solids

ChemPhysChem ◽  
2018 ◽  
Vol 19 (17) ◽  
pp. 2139-2142 ◽  
Author(s):  
Tanmoy Chakrabarty ◽  
Nir Goldin ◽  
Akiva Feintuch ◽  
Lothar Houben ◽  
Michal Leskes
Keyword(s):  
Nmr Spectroscopy ◽  
Dynamic Nuclear Polarization ◽  
Metal Ion ◽  
Nuclear Polarization ◽  
Inorganic Solids ◽  
Paramagnetic Metal

Dynamic Nuclear Polarization Enhanced Natural Abundance 17O Spectroscopy

2013 ◽  
Vol 135 (8) ◽  
pp. 2975-2978 ◽  
Author(s):  
Frédéric Blanc ◽  
Luke Sperrin ◽  
David A. Jefferson ◽  
Shane Pawsey ◽  
Melanie Rosay ◽  
...  
Keyword(s):  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
Natural Abundance
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