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The determination of O-17 NMR parameters of hydroxyl oxygen : a combined deuteration and DOR approach
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Wong, Alan, Hung, Ivan, Howes, Andy P., Anupõld, Tiit, Past, Jaan, Samoson, Ago, Brown, Steven P., Smith, Mark E. and Dupree, Ray (2007) The determination of O-17 NMR parameters of hydroxyl oxygen : a combined deuteration and DOR approach. Magnetic Resonance in Chemistry, Vol.45 (Suppl.S). S68-S72. doi:10.1002/mrc.2088 ISSN 0749-1581.
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Official URL: http://dx.doi.org/10.1002/mrc.2088
Abstract
The direct detection of hydroxyl oxygen (O-H) by O-17 double-rotation (DOR) NMR is very challenging because of the strong O-H dipole interaction. It is shown that deuteration of the hydroxyl site overcomes this using glycine-HCl as an illustration. Two well-separated sets of narrow (linewidth similar to 80-100 Hz) resonances with their spinning-sidebands are observed for the carboxyl and hydroxyl oxygens in the DOR spectrum of [O-17,H-2]glycine center dot HCl. The chemical shift anisotropy of these sites is obtained from a simulation of the DOR spinning-sideband intensities. The chemical shift span (Omega) for the carboxyl oxygen is found to be much larger than that of the hydroxyl oxygen, with Omega values of 540 +/- 15 and 210 +/- 10 ppm, respectively.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry Q Science > QC Physics |
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Divisions: | Administration > University Executive Office Faculty of Science, Engineering and Medicine > Science > Physics |
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Journal or Publication Title: | Magnetic Resonance in Chemistry | ||||
Publisher: | John Wiley & Sons Ltd. | ||||
ISSN: | 0749-1581 | ||||
Official Date: | December 2007 | ||||
Dates: |
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Volume: | Vol.45 | ||||
Number: | Suppl.S | ||||
Number of Pages: | 5 | ||||
Page Range: | S68-S72 | ||||
DOI: | 10.1002/mrc.2088 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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