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Article Dans Une Revue Acta Crystallographica Section B Année : 2019

A new ternary compound with the BGa8Ir4 structure type in the Al-Au-Ir system

Joris Kadok
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Marie-Cécile de Weerd
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Pascal Boulet
Vincent Fournée
Julian Ledieu

Résumé

Following the recent determination of the Al3AuIr structure, a new ternary phase has been identified in the Al-Au-Ir phase diagram. It has a chemical composition Al 9 (Au;Ir)4 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 1/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 BGa8Ir4 compound.

Domaines

Cristallographie
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Dates et versions

hal-02329348 , version 1 (23-10-2019)
hal-02329348 , version 2 (30-10-2019)

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Citer

Joris Kadok, Marie-Cécile de Weerd, Pascal Boulet, Vincent Fournée, Julian Ledieu. A new ternary compound with the BGa8Ir4 structure type in the Al-Au-Ir system. Acta Crystallographica Section B, 2019, B75 (1), pp.49-52. ⟨10.1107/S2052520618016712⟩. ⟨hal-02329348v2⟩
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