Materials Data on ThIrOs by Materials Project
ThOsIr is Cubic Laves-derived structured and crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Th is bonded in a 12-coordinate geometry to six equivalent Os and six equivalent Ir atoms. There are four shorter (3.23 Å) and two longer (3.24 Å) Th–Os bond lengths. There are four shorter (3.12 Å) and two longer (3.31 Å) Th–Ir bond lengths. Os is bonded to six equivalent Th, two equivalent Os, and four equivalent Ir atoms to form OsTh6Ir4Os2 cuboctahedra that share corners with eight equivalent IrTh6Ir2Os4 cuboctahedra, corners with ten equivalent OsTh6Ir4Os2 cuboctahedra, edges with six equivalent OsTh6Ir4Os2 cuboctahedra, faces with six equivalent OsTh6Ir4Os2 cuboctahedra, and faces with twelve equivalent IrTh6Ir2Os4 cuboctahedra. Both Os–Os bond lengths are 2.61 Å. All Os–Ir bond lengths are 2.76 Å. Ir is bonded to six equivalent Th, four equivalent Os, and two equivalent Ir atoms to form IrTh6Ir2Os4 cuboctahedra that share corners with eight equivalent OsTh6Ir4Os2 cuboctahedra, corners with ten equivalent IrTh6Ir2Os4 cuboctahedra, edges with six equivalent IrTh6Ir2Os4 cuboctahedra, faces with six equivalent IrTh6Ir2Os4 cuboctahedra, and faces with twelve equivalent OsTh6Ir4Os2 cuboctahedra. Both Ir–Ir bond lengths are 2.77 Å.