Y is alpha La structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to six equivalent Y(1) and six equivalent Y(2) atoms to form a mixture of edge, face, and corner-sharing YY12 cuboctahedra. In the second Y site, Y(2) is bonded to six equivalent Y(1) and six equivalent Y(2) atoms to form a mixture of edge, face, and corner-sharing YY12 cuboctahedra.
Y is alpha La structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to six equivalent Y(1) and six equivalent Y(2) atoms to form a mixture of edge, face, and corner-sharing YY12 cuboctahedra. All Y(1)-Y(1) bond lengths are 3.64 Å. All Y(1)-Y(2) bond lengths are 3.63 Å. In the second Y site, Y(2) is bonded to six equivalent Y(1) and six equivalent Y(2) atoms to form a mixture of edge, face, and corner-sharing YY12 cuboctahedra. All Y(2)-Y(2) bond lengths are 3.64 Å.