A study of the vacancy distribution in non-stoichiometric spinels by magic-angle spinning NMR
- 1 February 1986
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine A
- Vol. 53 (2), L17-L20
- https://doi.org/10.1080/01418618608242816
Abstract
A series of spinels of the general form MgO·xAl2O3 (x = 1·00 to x = 3·40) have been examined by magic-angle spinning (MAS) NMR to determine the vacancy distribution. It is found that the non-stoichiometric vacancies introduced with increasing x occupy the octahedral interstitial cation sites, rather than being randomly distributed or occupying tetrahedral sites. This study demonstrates that MAS-NMR can provide a convenient, readily interpretable method for examining structural problems in solids. A comparison is made with the earlier X-ray studies of the problem.Keywords
This publication has 2 references indexed in Scilit:
- Magic Angle SpinningInternational Reviews in Physical Chemistry, 1981
- Kationenverteilung und Strukturbeziehungen in Mg-Al-SpinellenZeitschrift für Kristallographie, 1958