DyY3 is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Dy(1) is bonded to twelve equivalent Y(1) atoms to form DyY12 cuboctahedra that share corners with six equivalent Dy(1)Y12 cuboctahedra, corners with twelve equivalent Y(1)Dy4Y8 cuboctahedra, edges with eighteen equivalent Y(1)Dy4Y8 cuboctahedra, faces with eight equivalent Dy(1)Y12 cuboctahedra, and faces with twelve equivalent Y(1)Dy4Y8 cuboctahedra. Y(1) is bonded to four equivalent Dy(1) and eight equivalent Y(1) atoms to form YDy4Y8 cuboctahedra that share corners with four equivalent Dy(1)Y12 cuboctahedra, corners with fourteen equivalent Y(1)Dy4Y8 cuboctahedra, edges with six equivalent Dy(1)Y12 cuboctahedra, edges with twelve equivalent Y(1)Dy4Y8 cuboctahedra, faces with four equivalent Dy(1)Y12 cuboctahedra, and faces with sixteen equivalent Y(1)Dy4Y8 cuboctahedra.
DyY3 is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Dy(1) is bonded to twelve equivalent Y(1) atoms to form DyY12 cuboctahedra that share corners with six equivalent Dy(1)Y12 cuboctahedra, corners with twelve equivalent Y(1)Dy4Y8 cuboctahedra, edges with eighteen equivalent Y(1)Dy4Y8 cuboctahedra, faces with eight equivalent Dy(1)Y12 cuboctahedra, and faces with twelve equivalent Y(1)Dy4Y8 cuboctahedra. There are six shorter (3.59 Å) and six longer (3.63 Å) Dy(1)-Y(1) bond lengths. Y(1) is bonded to four equivalent Dy(1) and eight equivalent Y(1) atoms to form YDy4Y8 cuboctahedra that share corners with four equivalent Dy(1)Y12 cuboctahedra, corners with fourteen equivalent Y(1)Dy4Y8 cuboctahedra, edges with six equivalent Dy(1)Y12 cuboctahedra, edges with twelve equivalent Y(1)Dy4Y8 cuboctahedra, faces with four equivalent Dy(1)Y12 cuboctahedra, and faces with sixteen equivalent Y(1)Dy4Y8 cuboctahedra. There are a spread of Y(1)-Y(1) bond distances ranging from 3.60-3.64 Å.