CeY is Magnesium-derived structured and crystallizes in the hexagonal P-6m2 space group. Ce(1) is bonded to six equivalent Ce(1) and six equivalent Y(1) atoms to form CeCe6Y6 cuboctahedra that share corners with eighteen equivalent Ce(1)Ce6Y6 cuboctahedra, edges with six equivalent Ce(1)Ce6Y6 cuboctahedra, edges with twelve equivalent Y(1)Ce6Y6 cuboctahedra, faces with eight equivalent Ce(1)Ce6Y6 cuboctahedra, and faces with twelve equivalent Y(1)Ce6Y6 cuboctahedra. Y(1) is bonded to six equivalent Ce(1) and six equivalent Y(1) atoms to form YCe6Y6 cuboctahedra that share corners with eighteen equivalent Y(1)Ce6Y6 cuboctahedra, edges with six equivalent Y(1)Ce6Y6 cuboctahedra, edges with twelve equivalent Ce(1)Ce6Y6 cuboctahedra, faces with eight equivalent Y(1)Ce6Y6 cuboctahedra, and faces with twelve equivalent Ce(1)Ce6Y6 cuboctahedra.
CeY is Magnesium-derived structured and crystallizes in the hexagonal P-6m2 space group. Ce(1) is bonded to six equivalent Ce(1) and six equivalent Y(1) atoms to form CeCe6Y6 cuboctahedra that share corners with eighteen equivalent Ce(1)Ce6Y6 cuboctahedra, edges with six equivalent Ce(1)Ce6Y6 cuboctahedra, edges with twelve equivalent Y(1)Ce6Y6 cuboctahedra, faces with eight equivalent Ce(1)Ce6Y6 cuboctahedra, and faces with twelve equivalent Y(1)Ce6Y6 cuboctahedra. All Ce(1)-Ce(1) bond lengths are 3.52 Å. All Ce(1)-Y(1) bond lengths are 3.53 Å. Y(1) is bonded to six equivalent Ce(1) and six equivalent Y(1) atoms to form YCe6Y6 cuboctahedra that share corners with eighteen equivalent Y(1)Ce6Y6 cuboctahedra, edges with six equivalent Y(1)Ce6Y6 cuboctahedra, edges with twelve equivalent Ce(1)Ce6Y6 cuboctahedra, faces with eight equivalent Y(1)Ce6Y6 cuboctahedra, and faces with twelve equivalent Ce(1)Ce6Y6 cuboctahedra. All Y(1)-Y(1) bond lengths are 3.52 Å.