A new ternary compound with the BGa 8 Ir 4 structure type in the Al-Au-Ir system.

Authors :: Kadok J
de Weerd MC
Boulet P
Fournée V
Ledieu J
Source :: Acta crystallographica Section B, Structural science, crystal engineering and materials [Acta Crystallogr B Struct Sci Cryst Eng Mater] 2019 Feb 01; Vol. 75 (Pt 1), pp. 49-52. Date of Electronic Publication: 2019 Jan 23.
Publication Year :: 2019
Abstract: Following the recent determination of the Al <subscript>3</subscript> AuIr structure, a new ternary phase has been identified in the Al-Au-Ir phase diagram. It has a chemical composition Al <subscript>9</subscript> (Au;Ir) <subscript>4</subscript> with an apparently low gold content. Its crystal structure has been determined with single-crystal X-ray diffraction. The new compound crystallizes in the tetragonal crystal system and has been successfully solved in space group I4 <subscript>1</subscript> /acd (Pearson symbol tI104) with lattice parameters a = 8.6339 (2) and c = 21.8874 (7) Å. Atomic environments are described as well as similarities with the BGa <subscript>8</subscript> Ir <subscript>4</subscript> compound.

Language :: English
ISSN :: 2052-5206
Volume :: 75
Issue :: Pt 1
Database :: MEDLINE
Journal :: Acta crystallographica Section B, Structural science, crystal engineering and materials
Publication Type :: Academic Journal
Accession number :: 32830777
Full Text :: https://doi.org/10.1107/S2052520618016712

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