Dissolution dynamic nuclear polarization of deuterated molecules enhanced by cross-polarization
Year: 2016
Type: article
Abstract: We present novel means to hyperpolarize deuterium nuclei in 13CD2 groups at cryogenic temperatures. The method is based on cross-polarization from 1H to 13C and does not require any radio-frequency fields applied to the deuterium nuclei. After rapid dissolution, a new class of long-lived spin states can be detected indirectly by 13C NMR in solution. These long-lived states result from a sextet-triplet imbalance (STI) that involves the two equivalent deuterons with spin I = 1. An STI has similar properties as a triplet-singlet imbalance that can occur in systems with two equivalent I = 12 spins. Although the lifetimes TSTI are shorter than T1(Cz), they can exceed the life-time T1(Dz) of deuterium Zeeman magnetization by a factor of more than 20.
Source: The Journal of Chemical Physics
DOI: 10.1063/1.4967402
Authors: Dennis Kurzbach, Emmanuelle M. M. Weber, Aditya Jhajharia, Samuel F. Cousin, Aude Sadet, Sina Marhabaie, Estel Canet, Nicolas Birlirakis, Jonas Milani, Sami Jannin, Dmitry Eshchenko, Alia Hassan, Roberto Melzi, Stephan Luetolf, Marco Sacher, Marc Rossire, James Kempf, Joost A. B. Lohman, Matthias Weller, Geoffrey Bodenhausen, Daniel Abergel
Institutions: Centre National de la Recherche Scientifique, Université Paris Sciences et Lettres, École Normale Supérieure - PSL, Laboratoire des Biomolécules, Université Pierre-et-Marie-Curie, École Polytechnique Fédérale de Lausanne, Lyon 1 Université, École Normale Supérieure de Lyon, Institut des Sciences Analytiques, Bruker (Switzerland), Bruker (United States), Bruker (United Kingdom)
Language: English
Subfield: Spectroscopy
Field: Chemistry
Domain: Physical Sciences
Open Access status: bronze
Award: G3490278752
OpenAlex ID: W2555720594