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

2021 ◽  
Author(s):  
Diego Carnevale ◽  
Georges Mouchaham ◽  
Sujing WANG ◽  
Mathieu Baudin ◽  
Christian SERRE ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
Nuclear Polarization ◽  
Metal Organic Frameworks ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Metal Organic ◽  
Angle Spinning

The 17O resonances of Zirconium-oxo clusters in porous Zr carboxylate metal-organic frameworks (MOFs) have been investigated by magic-angle spinning (MAS) NMR spectroscopy enhanced by dynamic nuclear polarization (DNP) at natural...

scholarly journals Dynamic nuclear polarization at 40 kHz magic angle spinning

2016 ◽  
Vol 18 (15) ◽  
pp. 10616-10622 ◽  
Author(s):  
Sachin R. Chaudhari ◽  
Pierrick Berruyer ◽  
David Gajan ◽  
Christian Reiter ◽  
Frank Engelke ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Solid State Nmr Spectroscopy ◽  
Wide Range ◽  
Angle Spinning

DNP-enhanced solid-state NMR spectroscopy is shown to maintain performance over a wide range of sample spinning rates up to 40 kHz.

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 Optimizing nitroxide biradicals for cross-effect MAS-DNP: the role of g-tensors’ distance

2020 ◽  
Vol 22 (6) ◽  
pp. 3643-3652 ◽  
Author(s):  
Frédéric Mentink-Vigier
Keyword(s):  
Solid State ◽  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Cross Effect ◽  
Angle Spinning

Nitroxide biradicals are common polarizing agents used to enhance the sensitivity of solid-state NMR experiments via Magic Angle Spinning Dynamic Nuclear Polarization (MAS-DNP).

Dynamic Nuclear Polarization Enhanced Solid-State NMR Spectroscopy of Functionalized Metal-Organic Frameworks

2011 ◽  
Vol 124 (1) ◽  
pp. 127-131 ◽  
Author(s):  
Aaron J. Rossini ◽  
Alexandre Zagdoun ◽  
Moreno Lelli ◽  
Jérôme Canivet ◽  
Sonia Aguado ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
Nuclear Polarization ◽  
Metal Organic Frameworks ◽  
Solid State Nmr Spectroscopy ◽  
Metal Organic

Dynamic Nuclear Polarization Enhanced Solid-State NMR Spectroscopy of Functionalized Metal-Organic Frameworks

2011 ◽  
Vol 51 (1) ◽  
pp. 123-127 ◽  
Author(s):  
Aaron J. Rossini ◽  
Alexandre Zagdoun ◽  
Moreno Lelli ◽  
Jérôme Canivet ◽  
Sonia Aguado ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
Nuclear Polarization ◽  
Metal Organic Frameworks ◽  
Solid State Nmr Spectroscopy ◽  
Metal Organic

scholarly journals Measurement of 14N quadrupole couplings in biomolecular solids using indirect-detection 14N solid-state NMR with DNP

2017 ◽  
Vol 53 (89) ◽  
pp. 12116-12119 ◽  
Author(s):  
J. A. Jarvis ◽  
I. Haies ◽  
M. Lelli ◽  
A. J. Rossini ◽  
I. Kuprov ◽  
...  
Keyword(s):  
Protein Structure ◽  
Solid State ◽  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Indirect Detection ◽  
Magic Angle ◽  
Angle Spinning

Insights into protein structure through the determination of 14N quadrupolar interactions using magic-angle spinning dynamic nuclear polarization NMR.

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.

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