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

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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
Subjects:	Q Science > QD Chemistry Q Science > QC Physics
Divisions:	Administration > Vice Chancellor's Office Faculty of Science > Physics
Journal or Publication Title:	Magnetic Resonance in Chemistry
Publisher:	John Wiley & Sons Ltd.
ISSN:	0749-1581
Official Date:	December 2007
Dates:	Date Event December 2007 Published
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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