TaOs3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ta(1) is bonded to twelve equivalent Os(1) atoms to form TaOs12 cuboctahedra that share corners with twelve equivalent Ta(1)Os12 cuboctahedra, edges with twenty-four equivalent Os(1)Ta4Os8 cuboctahedra, faces with six equivalent Ta(1)Os12 cuboctahedra, and faces with twelve equivalent Os(1)Ta4Os8 cuboctahedra. Os(1) is bonded to four equivalent Ta(1) and eight equivalent Os(1) atoms to form distorted OsTa4Os8 cuboctahedra that share corners with twelve equivalent Os(1)Ta4Os8 cuboctahedra, edges with eight equivalent Ta(1)Os12 cuboctahedra, edges with sixteen equivalent Os(1)Ta4Os8 cuboctahedra, faces with four equivalent Ta(1)Os12 cuboctahedra, and faces with fourteen equivalent Os(1)Ta4Os8 cuboctahedra.
TaOs3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ta(1) is bonded to twelve equivalent Os(1) atoms to form TaOs12 cuboctahedra that share corners with twelve equivalent Ta(1)Os12 cuboctahedra, edges with twenty-four equivalent Os(1)Ta4Os8 cuboctahedra, faces with six equivalent Ta(1)Os12 cuboctahedra, and faces with twelve equivalent Os(1)Ta4Os8 cuboctahedra. All Ta(1)-Os(1) bond lengths are 2.77 Å. Os(1) is bonded to four equivalent Ta(1) and eight equivalent Os(1) atoms to form distorted OsTa4Os8 cuboctahedra that share corners with twelve equivalent Os(1)Ta4Os8 cuboctahedra, edges with eight equivalent Ta(1)Os12 cuboctahedra, edges with sixteen equivalent Os(1)Ta4Os8 cuboctahedra, faces with four equivalent Ta(1)Os12 cuboctahedra, and faces with fourteen equivalent Os(1)Ta4Os8 cuboctahedra. All Os(1)-Os(1) bond lengths are 2.77 Å.