High Field Dynamic Nuclear Polarization with High-Spin Transition Metal Ions
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Griffin_High Field.pdf
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Author(s)
Barnes, Alexander
Corzilius, Bjorn
Griffin, Robert Guy
Bertini, Ivano
Luchinat, Claudio
Smith, Albert A.
Date Issued
March 2011
Journal
Journal of the American Chemical Society
Publisher
American Chemical Society (ACS)
Citation
Corzilius, Björn et al. “High-Field Dynamic Nuclear Polarization with High-Spin Transition Metal Ions.” Journal of the American Chemical Society 133.15 (2011): 5648–5651.
Version
Author's final manuscript
Abstract
We report the dynamic nuclear polarization of 1H spins in magic-angle-spinning spectra recorded at 5 T and 84 K via the solid effect using Mn2+ and Gd[superscript 3+] complexes as polarizing agents. We show that the magnitude of the enhancements can be directly related to the effective line width of the central (mS = −1/2 → +1/2) EPR transition. Using a Gd[superscript 3+] complex with a narrow central transition EPR line width of 29 MHz, we observed a maximum enhancement of 13, which is comparable to previous results on the narrow-line-width trityl radical.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Francis Bitter Magnet Laboratory (Massachusetts Institute of Technology)
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DOI of Published Version
https://doi.org/10.1021/ja1109002
