The determination of O-17 NMR parameters of hydroxyl oxygen : a combined deuteration and DOR approach

Wong, Alan and Hung, Ivan and Howes, Andy P. and Anupõld, Tiit and Past, Jaan and Samoson, Ago and Brown, Steven P. and 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, 45 (Supple). S68-S72. ISSN 1097-458X

Full text not available from this repository.

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
Journal or Publication Title:
Magnetic Resonance in Chemistry
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1600
Subjects:
Departments:
ID Code:
52872
Deposited By:
Deposited On:
29 Feb 2012 11:57
Refereed?:
Yes
Published?:
Published
Last Modified:
11 Mar 2020 03:24