title: Two new compounds, β-ScTe and Y3Au2, and a reassessment of Y2Au.
abstract: Two new compounds, β-ScTe (scandium telluride) and Y(3)Au(2) (triyttrium digold), have been synthesized by high-temperature solid-state techniques and their crystal structures, along with that of Y(2)Au (diyttrium gold), have been refined by single-crystal X-ray diffraction methods. β-ScTe is a superstructure of ScTe (NiAs-type), featuring double hexagonal close-packed layers of Te atoms with the octahedral cavities filled by Sc atoms. Y(3)Au(2) displays a U(3)Si(2)-type structure and is built from Au(2)-centered bitrigonal prisms and centered cubes of Y atoms. The structure of Y(2)Au is better described as an inverse PbCl(2)-type structure rather than a Co(2)Si-type.
authors: Department of Chemistry, Iowa State University, Ames, IA 50010, USA.
authors: Ping
authors: P
authors: Chai
authors: John D
authors: JD
authors: Corbett