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.
Non-aqueous solvents for DNP surface enhanced NMR spectroscopy / Zagdoun, Alexandre; Rossini, Aaron J.; Gajan, David; Bourdolle, Adrien; Ouari, Olivier; Rosay, Melanie; Maas, Werner E.; Tordo, Paul; Lelli, Moreno; Emsley, Lyndon; Lesage, Anne; Copéret, Christophe. - In: CHEMICAL COMMUNICATIONS. - ISSN 1359-7345. - STAMPA. - 48:(2012), pp. 654-656. [10.1039/c1cc15242d]
Non-aqueous solvents for DNP surface enhanced NMR spectroscopy
LELLI, MORENOInvestigation
;
2012
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.
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