Acta Cryst. (2006). E62, i173-i175  [ doi:10.1107/S1600536806025323 ]

MgIr₃Si₇, a new magnesium iridium silicide with the ScRh₃Si₇ type structure

P. Lorenz and W. Jung

Abstract: The title compound, magnesium triiridium heptasilicide, was synthesized by reaction of the elemental components in a sealed tantalum container. It crystallizes in space group Rc and adopts the ScRh₃Si₇ structure type. Mg, Ir and one of the two cystallographically independent Si atoms are in special positions with site symmetries , 2 and 32, respectively. MgIr₃Si₇ shows metallic conductivity and remarkable chemical inertness.

Online 12 July 2006

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