The Structure of Amorphous Platinum Disulfide as Studied by Anomalous X-ray Scattering

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<jats:title>Abstract</jats:title> <jats:p> Anomalous X-ray scattering (AXS) has been applied to study the structure of amorphous plati­ num disulfide, Pt<jats:sub>1-x</jats:sub>S<jats:sub>2</jats:sub>, prepared by the precipitation process. The local atomic arrangement in amorphous Pt<jats:sub>1-x</jats:sub>S<jats:sub>2</jats:sub> was determined by the least-squares variational method so as to reproduce the experimental differential interference function at the Pt L<jats:sub>m</jats:sub> absorption edge by the AXS method as well as the ordinary interference function by Mo K α. The structural unit in amorphous Pt<jats:sub>1-x</jats:sub>S<jats:sub>2</jats:sub> is found to be a PtS<jats:sub>6</jats:sub> octahedron, similar to that in crystalline PtS<jats:sub>2</jats:sub>. These octahedra share both their corners and edges, while only edge-sharing linkages occur in crystalline PtS<jats:sub>2</jats:sub> </jats:p>

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