title: Dissolution dynamic nuclear polarization of deuterated molecules enhanced by cross-polarization.
abstract: We present novel means to hyperpolarize deuterium nuclei in13CD2groups at cryogenic temperatures. The method is based on cross-polarization from1H to13C 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 by13C 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 TSTIare shorter than T1(Cz), they can exceed the life-time T1(Dz) of deuterium Zeeman magnetization by a factor of more than 20.
authors.affiliation: Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France.
authors.forename: Dennis
authors.initials: D
authors.lastname: Kurzbach
authors.affiliation: Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France.
authors.forename: Emmanuelle M M
authors.initials: EM
authors.lastname: Weber
authors.affiliation: Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France.
authors.forename: Aditya
authors.initials: A
authors.lastname: Jhajharia
authors.affiliation: Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France.
authors.forename: Samuel F
authors.initials: SF
authors.lastname: Cousin
authors.affiliation: Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France.
authors.forename: Aude
authors.initials: A
authors.lastname: Sadet
authors.affiliation: Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France.
authors.forename: Sina
authors.initials: S
authors.lastname: Marhabaie
authors.affiliation: Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France.
authors.forename: Estel
authors.initials: E
authors.lastname: Canet
authors.affiliation: Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Birlirakis
authors.affiliation: Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Batochime, CH-1015 Lausanne, Switzerland.
authors.forename: Jonas
authors.initials: J
authors.lastname: Milani
authors.affiliation: Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Batochime, CH-1015 Lausanne, Switzerland.
authors.forename: Sami
authors.initials: S
authors.lastname: Jannin
authors.affiliation: Bruker BioSpin, Industriestrasse 26, 8117 Fällanden, Switzerland.
authors.forename: Dmitry
authors.initials: D
authors.lastname: Eshchenko
authors.affiliation: Bruker BioSpin, Industriestrasse 26, 8117 Fällanden, Switzerland.
authors.forename: Alia
authors.initials: A
authors.lastname: Hassan
authors.affiliation: Bruker BioSpin, Viale V. Lancetti 43, 20158 Milano, Italy.
authors.forename: Roberto
authors.initials: R
authors.lastname: Melzi
authors.affiliation: Bruker BioSpin, Industriestrasse 26, 8117 Fällanden, Switzerland.
authors.forename: Stephan
authors.initials: S
authors.lastname: Luetolf
authors.affiliation: Bruker BioSpin, Industriestrasse 26, 8117 Fällanden, Switzerland.
authors.forename: Marco
authors.initials: M
authors.lastname: Sacher
authors.affiliation: Bruker BioSpin, Industriestrasse 26, 8117 Fällanden, Switzerland.
authors.forename: Marc
authors.initials: M
authors.lastname: Rossire
authors.affiliation: Bruker BioSpin, 15 Fortune Drive, Billerica, Maryland 01821, USA.
authors.forename: James
authors.initials: J
authors.lastname: Kempf
authors.affiliation: Bruker UK Limited, Banner Lane, Coventry CV4 9GH, United Kingdom.
authors.forename: Joost A B
authors.initials: JA
authors.lastname: Lohman
authors.affiliation: Bruker BioSpin, Industriestrasse 26, 8117 Fällanden, Switzerland.
authors.forename: Matthias
authors.initials: M
authors.lastname: Weller
authors.affiliation: Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France.
authors.forename: Geoffrey
authors.initials: G
authors.lastname: Bodenhausen
authors.affiliation: Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France.
authors.forename: Daniel
authors.initials: D
authors.lastname: Abergel