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Non-aqueous solvents for DNP surface enhanced NMR spectroscopy†
Alexandre Zagdoun,Aaron J. Rossini,David Gajan,Adrien Bourdolle,Olivier Ouari,Melanie Rosay,Werner E. Maas,Paul Tordo,Moreno Lelli,Lyndon Emsley,Anne Lesage,Christophe Copéret
Chemical Communications Pub Date : 10/28/2011 00:00:00 , DOI:10.1039/C1CC15242D
Abstract

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.

Graphical abstract: Non-aqueous solvents for DNP surface enhanced NMR spectroscopy
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