The magnetic field dependence of cross-effect dynamic nuclear polarization under magic angle spinning

2015 ◽  
Vol 142 (23) ◽  
pp. 234201 ◽  
Author(s):  
Deni Mance ◽  
Peter Gast ◽  
Martina Huber ◽  
Marc Baldus ◽  
Konstantin L. Ivanov
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Dynamic Nuclear Polarization ◽  
Magnetic Field Dependence ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Cross Effect ◽  
Angle Spinning ◽  
The Magnetic Field

Dynamic Nuclear Polarization-Enhanced Biomolecular NMR Spectroscopy at High Magnetic Field with Fast Magic-Angle Spinning

2018 ◽  
Vol 130 (25) ◽  
pp. 7580-7584 ◽  
Author(s):  
Kristaps Jaudzems ◽  
Andrea Bertarello ◽  
Sachin R. Chaudhari ◽  
Andrea Pica ◽  
Diane Cala-De Paepe ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Nmr Spectroscopy ◽  
High Magnetic Field ◽  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Biomolecular Nmr ◽  
Angle Spinning ◽  
Fast Magic Angle Spinning

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 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.

Chemisch induzierte Kernpolarisation von Phenylhalogeniden bei der Photolyse von Aroylperoxiden

1969 ◽  
Vol 24 (11) ◽  
pp. 1771-1778 ◽  
Author(s):  
M. Lehnig ◽  
H. Fischer
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Dynamic Nuclear Polarization ◽  
Nmr Spectra ◽  
Magnetic Field Dependence ◽  
Nuclear Polarization ◽  
Radical Reactions ◽  
Chemically Induced ◽  
Polarization Mechanism ◽  
The Magnetic Field

Abstract By a flow technique chemically induced nuclear polarization is observed in the NMR-spectra of phenylhalides formed during photolysis of aroylperoxides in solution. The main features of the polarization are quantitatively explained by dynamic nuclear polarization (CIDNP) of protons in the intermediate phenyl radicals. Some details however indicate that a second polarization mechanism is also present. This mechanism leads to a multiplet-effect type polarization and operates presumably during bond fromation in the radical reactions. Some results on the magnetic field dependence of the nuclear polarizations are given.

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

2021 ◽  
Author(s):  
Frédéric Mentink-Vigier ◽  
Anne-Laure Barra ◽  
Johan van Tol ◽  
Sabine Hediger ◽  
Daniel Lee ◽  
...  
Keyword(s):  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
De Novo ◽  
Chem Phys ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Cross Effect ◽  
Angle Spinning ◽  
Phys Chem Chem Phys

Correction for ‘De novo prediction of cross-effect efficiency for magic angle spinning dynamic nuclear polarization’ by Frédéric Mentink-Vigier et al., Phys. Chem. Chem. Phys., 2019, 21, 2166–2176, DOI: 10.1039/C8CP06819D.

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