YbSi2 is hexagonal omega structure structured and crystallizes in the hexagonal P6/mmm space group. Yb(1) is bonded to twelve equivalent Si(1) atoms to form a mixture of face and edge-sharing YbSi12 cuboctahedra. Si(1) is bonded in a 9-coordinate geometry to six equivalent Yb(1) and three equivalent Si(1) atoms.
YbSi2 is hexagonal omega structure structured and crystallizes in the hexagonal P6/mmm space group. Yb(1) is bonded to twelve equivalent Si(1) atoms to form a mixture of face and edge-sharing YbSi12 cuboctahedra. All Yb(1)-Si(1) bond lengths are 3.12 Å. Si(1) is bonded in a 9-coordinate geometry to six equivalent Yb(1) and three equivalent Si(1) atoms. All Si(1)-Si(1) bond lengths are 2.32 Å.