Work

Communication: Dissolution DNP reveals a long-lived deuterium spin state imbalance in methyl groups

Year: 2017

Type: article

Abstract: We report the generation and observation of long-lived spin states in deuterated methyl groups by dissolution DNP. These states are based on population imbalances between manifolds of spin states corresponding to irreducible representations of the C3v point group and feature strongly dampened quadrupolar relaxation. Their lifetime depends on the activation energies of methyl group rotation. With dissolution DNP, we can reduce the deuterium relaxation rate by a factor up to 20, thereby extending the experimentally available time window. The intrinsic limitation of NMR spectroscopy of quadrupolar spins by short relaxation times can thus be alleviated.

Source: The Journal of Chemical Physics

DOI: 10.1063/1.4974358

Authors: Aditya Jhajharia, Emmanuelle M. M. Weber, James G. Kempf, Daniel Abergel, Geoffrey Bodenhausen, Dennis Kurzbach

Institutions: Centre National de la Recherche Scientifique, Université Paris Sciences et Lettres, École Normale Supérieure - PSL, Laboratoire des Biomolécules, Université Pierre-et-Marie-Curie, Bruker (United States)

Language: English

Topic: Advanced NMR Techniques and Applications

Subfield: Spectroscopy

Field: Chemistry

Domain: Physical Sciences

Open Access status: bronze

Funder: H2020 European Research Council

OpenAlex ID: W2580962801

FWCI: 1.892

Cites: 21

Cited by: 19

Related to: 10