Journal articles
Rational design of dinitroxide biradicals for efficient cross-effect dynamic nuclear polarization
Dominik Kubicki
1
Gilles Casano
2
Martin Schwarzwälder
3
Sebastien Abel
2
Claire Sauvée
2
Karthikeyan Ganesan
4
Maxim Yulikov
3
Aaron Rossini
5
Gunnar Jeschke
6
Christophe Copéret
3
Anne Lesage
1
Paul Tordo
7
Olivier Ouari
2
Lyndon Emsley
5
1
Solid-State NMR Methods for Materials - Méthodes de RMN à l'état solide pour les matériaux
ISA - Institut des Sciences Analytiques
Dominik J Kubicki 1
Author
Gilles Casano 2
Author
Martin Schwarzwälder 3
Author
Sebastien ´ Abel 2
Author
Claire ´ Sauvée 2
Author
Karthikeyan Ganesan 4
Author
Maxim Yulikov 3
Author
Aaron J Rossini 5
Author
Olivier Ouari 2
Author
Lyndon Emsley 5
Author
1
Solid-State NMR Methods for Materials - Méthodes de RMN à l'état solide pour les matériaux (France)
- ISA - Institut des Sciences Analytiques (5 rue de la Doua, 69100 Villeurbanne - France)
- UCBL - Université Claude Bernard Lyon 1 : UMR5280 (43, boulevard du 11 novembre 1918, 69622 Villeurbanne cedex - France)
- Université de Lyon (92 rue Pasteur - CS 30122, 69361 Lyon Cedex 07 - France)
- Université de Lyon (92 rue Pasteur - CS 30122, 69361 Lyon Cedex 07 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5280 (France)
- UCBL - Université Claude Bernard Lyon 1 : UMR5280 (43, boulevard du 11 novembre 1918, 69622 Villeurbanne cedex - France)
2
ICR - Institut de Chimie Radicalaire (Avenue Escadrille Normandie-Niemen
Service D42
13397 Marseille cedex 20 - France)
- AMU - Aix Marseille Université : UMR7273 (Aix-Marseille Université Jardins du Pharo 58 Boulevard Charles Livon 13284 Marseille cedex 7 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7273 (France)
3
Laboratory of Inorganic Chemistry (Department of Chemistry ETH Zürich Wolfgang Pauli Strasse 10 8093 Zürich (Switzerland) - Switzerland)
4
Association of Computer Electronics and Electrical Engineers (ACEEE) (United States)
5
Ecole Polytechnique Fédérale de Lausanne (EPFL), Institute of Chemical Sciences and Engineering, CH-1015, Lausanne, Switzerland (Switzerland)
6
Laboratory of Physical Chemistry (Zurich - Switzerland)
- ETH Zürich - Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (Hauptgebäude, Rämistrasse 101, 8092 Zürich - Switzerland)
7
SREP - Structure et Réactivité des Espèces Paramagnétiques (CNRS UMR 6517, "Chimie, Biologie et Radicaux Libres", Universités d'Aix-Marseille I et III, Centre de St Jérôme, Service 521, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20 - France)
- Université de Provence - Aix-Marseille 1 (3, place Victor Hugo - 13331 Marseille Cedex 03 - France)
Abstract : A series of 37 dinitroxide biradicals have been prepared and their performance studied as polarizing agents in cross-effect DNP NMR experiments at 9.4 T and 100 K in 1,1,2,2-tetrachloroethane (TCE). We observe that in this regime the DNP performance is strongly correlated with the substituents on the polarizing agents, and electron and nuclear spin relaxation times, with longer relaxation times leading to better enhancements. We also observe that deuteration of the radicals generally leads to better DNP enhancement but with longer build-up time. One of the new radicals introduced here provides the best performance obtained so far under these conditions.
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Journal articles
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https://hal-amu.archives-ouvertes.fr/hal-01387080
Contributor : Emilie Pepe <>
Submitted on : Tuesday, October 25, 2016 - 10:34:36 AM
Last modification on : Tuesday, June 15, 2021 - 2:30:17 PM
Contributor : Emilie Pepe <>
Submitted on : Tuesday, October 25, 2016 - 10:34:36 AM
Last modification on : Tuesday, June 15, 2021 - 2:30:17 PM
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chemscience2016.7.550-558.pdf
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- HAL Id : hal-01387080, version 1
- DOI : 10.1039/C5SC02921J
Citation
Dominik Kubicki, Gilles Casano, Martin Schwarzwälder, Sebastien Abel, Claire Sauvée, et al.. Rational design of dinitroxide biradicals for efficient cross-effect dynamic nuclear polarization. Chemical Science , The Royal Society of Chemistry, 2016, 7 (1), pp.550 - 558. ⟨10.1039/C5SC02921J⟩. ⟨hal-01387080⟩
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