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).

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 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 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.

Silica materials with wall-embedded nitroxides provide efficient polarization matrices for dynamic nuclear polarization NMR

2016 ◽  
Vol 52 (32) ◽  
pp. 5531-5533 ◽  
Author(s):  
Eric Besson ◽  
Fabio Ziarelli ◽  
Emily Bloch ◽  
Guillaume Gerbaud ◽  
Séverine Queyroy ◽  
...  
Keyword(s):  
Dynamic Nuclear Polarization ◽  
Solid State Nmr ◽  
High Field ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Hybrid Silica ◽  
Silica Materials ◽  
Field Dynamic ◽  
Angle Spinning

Hybrid silica materials with wall-embedded nitroxides efficiently polarize impregnated substrates in high-field dynamic nuclear polarization magic-angle spinning solid-state NMR experiments.

scholarly journals Photo-CIDNP in Solid State

2021 ◽  
Author(s):  
Jörg Matysik ◽  
Yonghong Ding ◽  
Yunmi Kim ◽  
Patrick Kurle ◽  
Alexandra Yurkovskaya ◽  
...  
Keyword(s):  
Solid State ◽  
Dynamic Nuclear Polarization ◽  
Analytical Method ◽  
Nuclear Polarization ◽  
State Of The Art ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Radical Pairs ◽  
Chemically Induced ◽  
Angle Spinning

AbstractPhoto-CIDNP (photo-chemically induced dynamic nuclear polarization) refers to nuclear polarization created by the spin-chemical evolution of spin-correlated radical pairs (SCRPs). This phenomenon occurs in gases, liquids and solids. Based on the solid-state photo-CIDNP effect observed under magic-angle spinning (MAS), photo-CIDNP MAS NMR has been developed as analytical method. Here we report the origin, the theory and the state of the art of this method.

scholarly journals De novo prediction of cross-effect efficiency for magic angle spinning dynamic nuclear polarization

2019 ◽  
Vol 21 (4) ◽  
pp. 2166-2176 ◽  
Author(s):  
Frédéric Mentink-Vigier ◽  
Anne-Laure Barra ◽  
Johan van Tol ◽  
Sabine Hediger ◽  
Daniel Lee ◽  
...  
Keyword(s):  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
De Novo ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Cross Effect ◽  
Angle Spinning

From the polarizing agent geometry and EPR properties to the prediction of magic angle spinning dynamic nuclear polarization efficiency.

Nuclear depolarization and absolute sensitivity in magic-angle spinning cross effect dynamic nuclear polarization

2015 ◽  
Vol 17 (34) ◽  
pp. 21824-21836 ◽  
Author(s):  
Frédéric Mentink-Vigier ◽  
Subhradip Paul ◽  
Daniel Lee ◽  
Akiva Feintuch ◽  
Sabine Hediger ◽  
...  
Keyword(s):  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Cross Effect ◽  
Experimental Conditions ◽  
Absolute Sensitivity ◽  
Field Dependent ◽  
Angle Spinning

Biradicals' performance in MAS-DNP experiments should be revised to account for substantial field-dependent nuclear polarization losses that depend on experimental conditions and biradical properties.

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