LaY3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. La(1) is bonded to twelve equivalent Y(1) atoms to form LaY12 cuboctahedra that share corners with twelve equivalent La(1)Y12 cuboctahedra, edges with twenty-four equivalent Y(1)La4Y8 cuboctahedra, faces with six equivalent La(1)Y12 cuboctahedra, and faces with twelve equivalent Y(1)La4Y8 cuboctahedra. Y(1) is bonded to four equivalent La(1) and eight equivalent Y(1) atoms to form YLa4Y8 cuboctahedra that share corners with twelve equivalent Y(1)La4Y8 cuboctahedra, edges with eight equivalent La(1)Y12 cuboctahedra, edges with sixteen equivalent Y(1)La4Y8 cuboctahedra, faces with four equivalent La(1)Y12 cuboctahedra, and faces with fourteen equivalent Y(1)La4Y8 cuboctahedra.
LaY3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. La(1) is bonded to twelve equivalent Y(1) atoms to form LaY12 cuboctahedra that share corners with twelve equivalent La(1)Y12 cuboctahedra, edges with twenty-four equivalent Y(1)La4Y8 cuboctahedra, faces with six equivalent La(1)Y12 cuboctahedra, and faces with twelve equivalent Y(1)La4Y8 cuboctahedra. All La(1)-Y(1) bond lengths are 3.66 Å. Y(1) is bonded to four equivalent La(1) and eight equivalent Y(1) atoms to form YLa4Y8 cuboctahedra that share corners with twelve equivalent Y(1)La4Y8 cuboctahedra, edges with eight equivalent La(1)Y12 cuboctahedra, edges with sixteen equivalent Y(1)La4Y8 cuboctahedra, faces with four equivalent La(1)Y12 cuboctahedra, and faces with fourteen equivalent Y(1)La4Y8 cuboctahedra. All Y(1)-Y(1) bond lengths are 3.66 Å.