Non-aqueous solvents for DNP surface enhanced NMR spectroscopy.
A series of non-aqueous solvents combined with the exogenous biradical bTbK are developed for DNP NMR that yield enhancements comparable to the best available water based systems. 1,1,2,2-tetrachloroethane appears to be one of the most promising organic solvents for DNP solid-state NMR. Here this results in a reduction in experimental times by a factor of 1000. These new solvents are demonstrated with the first DNP surface enhanced NMR characterization of an organometallic complex supported on a hydrophobic surface.
Centre de RMN a Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France.
Alexandre
A
Zagdoun
Aaron J
AJ
Rossini
David
D
Gajan
Adrien
A
Bourdolle
Olivier
O
Ouari
Melanie
M
Rosay
Werner E
WE
Maas
Paul
P
Tordo
Moreno
M
Lelli
Lyndon
L
Emsley
Anne
A
Lesage
Christophe
C
Copéret