O-17 solid-state NMR examination of La2O3 formation

Ali, Fatima and Smith, Mark E. and Steuernagel, Stefan and Whitfield, Harold J. (1996) O-17 solid-state NMR examination of La2O3 formation. Journal of Materials Chemistry, 6 (2). pp. 261-264. ISSN 0959-9428. (The full text of this publication is not available from this repository)

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Official URL
http://dx.doi.org/10.1039/JM9960600261

Abstract

Solid-state O-17 magic-angle spinning (MAS) NMR spectroscopy has been used to study the formation of hexagonal La2O3 from both dehydroxylation of La(OH)(3) and a sol-gel route starting from lanthanum isopropoxide. Both routes proceed via the formation of the oxyhydroxide [LaO(OH)] which is not commonly observed for other simple oxides. O-17 NMR spectroscopy is very sensitive to structural changes even in amorphous samples and the resonances of specific phases are assigned elucidating the chemical shift ranges of the local oxygen coordinations in these materials. The quadrupolar coupling constant for the OLa4 site in La2O3 is determined by the application of satellite transition NMR spectroscopy.

Item Type: Article
Subjects: Q Science
Q Science > QD Chemistry
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: M.A. Ziai
Date Deposited: 17 May 2009 08:57
Last Modified: 13 Jun 2014 10:48
Resource URI: http://kar.kent.ac.uk/id/eprint/18786 (The current URI for this page, for reference purposes)
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