Single crystals of tetracalcium iridium hexaoxide, Ca4IrO6, tricalcium magnesium iridium hexaoxide, Ca3MgIrO6, and tricalcium zinc iridium hexaoxide, Ca3ZnIrO6, were prepared via high-temperature flux growth and structurally characterized by single-crystal X-ray diffraction. The three compounds are isostructural and adopt the K4CdCl6 structure type, comprised of chains of alternating face-shared [CaO6], [MgO6] or [ZnO6] trigonal prisms and [IrO6] octahedra, surrounded by columns of Ca2+ ions.
Formula: Ca4IrO6, Ca3.34Mg0.66IrO6 and Ca3.50Zn0.50IrO6
Published in Acta Crystallographica Section C, Volume C57, Issue 11, 2001, pages 1234-1236.
Copyright © International Union of Crystallography
Publisher's Version: http://dx.doi.org/10.1107/S0108270101013282