DySi2 is hexagonal omega structure-like structured and crystallizes in the tetragonal I4_1/amd space group. Dy(1) is bonded to twelve equivalent Si(1) atoms to form a mixture of face and edge-sharing DySi12 cuboctahedra. Si(1) is bonded in a 9-coordinate geometry to six equivalent Dy(1) and three equivalent Si(1) atoms.
DySi2 is hexagonal omega structure-like structured and crystallizes in the tetragonal I4_1/amd space group. Dy(1) is bonded to twelve equivalent Si(1) atoms to form a mixture of face and edge-sharing DySi12 cuboctahedra. There are eight shorter (3.02 Å) and four longer (3.19 Å) Dy(1)-Si(1) bond lengths. Si(1) is bonded in a 9-coordinate geometry to six equivalent Dy(1) and three equivalent Si(1) atoms. There are two shorter (2.35 Å) and one longer (2.44 Å) Si(1)-Si(1) bond length.