Structure determination of the intermediate tin oxide Sn3O4 by precession electron diffraction

Thomas A. White, M. Sergio Moreno 1  and Paul A. Midgley 2
  • 1  Centro Atomico Bariloche, S. C. de Bariloche, Argentinien
  • 2  University of Cambridge, Department of Materials Science and Metallurgy, Cambridge, Großbritannien

Abstract

The structure of an intermediate form of tin oxide was investigated by precession electron diffraction. The results support a revised version of a layered, vacancy-ordered structure for Sn3O4 proposed in the preceding literature. The lattice parameters were found to be consistent with a monoclinic cell which is a distorted superlattice of the cassiterite structure. Zero-order Laue zone (ZOLZ) Patterson maps, phased projections and phases measured from a [001] first-order Laue zone (FOLZ) conditional Patterson map all support the proposed modification to the tin coordinates over the unmodified form. The results of kinematical refinement were not satisfactory, although weak features found in the Patterson maps were consistent with the oxygen atoms being located close to the previously proposed positions.

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Zeitschrift für Kristallographie – Crystalline Materials offers a place for researchers to present results of their crystallographic studies. The journal includes theoretical as well as experimental research. It publishes Original Papers, Letters and Review Articles in manifold areas of crystallography.

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