To examine the feasibility of low-field (9.7 GHz/0.35 T) DNP in high resolution NMR, we have constructed the prototype of a two-field shuttle DNP spectrometer that polarizes nuclei at 9.7 GHz/0.35 T and detects the NMR spectrum at 14 T. Enhancements up to 15 were observed for small molecules at 14 T as compared to the Boltzmann signal. The results provide a proof of principle for the feasibility of a shuttle DNP experiment and open up perspectives for the application potential in solution NMR.
1H and 13C Dynamic Nuclear Polarization in Aqueous Solution with a Two-Field (0.35T/14T) Shuttle DNP Spectrometer / M.Reese, M.-T.Türke, I.Tkach, G.Parigi, C.Luchinat, T.Marquardsen, A.Tavernier, P.Höfer, F.Engelke, C.Griesinger, M.Bennati. - In: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY. - ISSN 0002-7863. - STAMPA. - 131:(2009), pp. 15086-15087. [10.1021/ja905959n]
1H and 13C Dynamic Nuclear Polarization in Aqueous Solution with a Two-Field (0.35T/14T) Shuttle DNP Spectrometer
PARIGI, GIACOMO;LUCHINAT, CLAUDIO;
2009
Abstract
To examine the feasibility of low-field (9.7 GHz/0.35 T) DNP in high resolution NMR, we have constructed the prototype of a two-field shuttle DNP spectrometer that polarizes nuclei at 9.7 GHz/0.35 T and detects the NMR spectrum at 14 T. Enhancements up to 15 were observed for small molecules at 14 T as compared to the Boltzmann signal. The results provide a proof of principle for the feasibility of a shuttle DNP experiment and open up perspectives for the application potential in solution NMR.
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