HoSi2 is hexagonal omega structure structured and crystallizes in the hexagonal P6/mmm space group. Ho(1) is bonded to twelve equivalent Si(1) atoms to form a mixture of edge and face-sharing HoSi12 cuboctahedra. Si(1) is bonded in a 9-coordinate geometry to six equivalent Ho(1) and three equivalent Si(1) atoms.
HoSi2 is hexagonal omega structure structured and crystallizes in the hexagonal P6/mmm space group. Ho(1) is bonded to twelve equivalent Si(1) atoms to form a mixture of edge and face-sharing HoSi12 cuboctahedra. All Ho(1)-Si(1) bond lengths are 3.07 Å. Si(1) is bonded in a 9-coordinate geometry to six equivalent Ho(1) and three equivalent Si(1) atoms. All Si(1)-Si(1) bond lengths are 2.36 Å.