High Field Dynamic Nuclear Polarization NMR with Surfactant Sheltered Biradicals
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Griffin_High Field.pdf
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Author(s)
Kiesewetter, Matthew K.
Michaelis, Vladimir K.
Walish, Joseph John
Griffin, Robert Guy
Swager, Timothy M
Date Issued
February 2014
Journal
Journal of Physical Chemistry B
Publisher
American Chemical Society (ACS)
Citation
Kiesewetter, Matthew K., Vladimir K. Michaelis, Joseph J. Walish, Robert G. Griffin, and Timothy M. Swager. “High Field Dynamic Nuclear Polarization NMR with Surfactant Sheltered Biradicals.” The Journal of Physical Chemistry B 118, no. 7 (February 20, 2014): 1825–1830.
Version
Final published version
Abstract
We illustrate the ability to place a water-insoluble biradical, bTbk, into a glycerol/water matrix with the assistance of a surfactant, sodium octyl sulfate (SOS). This surfactant approach enables a previously water insoluble biradical, bTbk, with favorable electron–electron dipolar coupling to be used for dynamic nuclear polarization (DNP) nuclear magnetic resonance (NMR) experiments in frozen, glassy, aqueous media. Nuclear Overhauser enhancement (NOE) and paramagnetic relaxation enhancement (PRE) experiments are conducted to determine the distribution of urea and several biradicals within the SOS macromolecular assembly. We also demonstrate that SOS assemblies are an effective approach by which mixed biradicals are created through an assembly process.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Francis Bitter Magnet Laboratory (Massachusetts Institute of Technology)
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1021/jp410387e
