Eu is alpha La structured and crystallizes in the hexagonal P-6m2 space group. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to three equivalent Eu(2), three equivalent Eu(3), and six equivalent Eu(1) atoms to form a mixture of corner, face, and edge-sharing EuEu12 cuboctahedra. In the second Eu site, Eu(2) is bonded to six equivalent Eu(1) and six equivalent Eu(2) atoms to form a mixture of corner, face, and edge-sharing EuEu12 cuboctahedra. In the third Eu site, Eu(3) is bonded to six equivalent Eu(1) and six equivalent Eu(3) atoms to form a mixture of corner, face, and edge-sharing EuEu12 cuboctahedra.
Eu is alpha La structured and crystallizes in the hexagonal P-6m2 space group. There are three inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to three equivalent Eu(2), three equivalent Eu(3), and six equivalent Eu(1) atoms to form a mixture of corner, face, and edge-sharing EuEu12 cuboctahedra. All Eu(1)-Eu(2) bond lengths are 3.94 Å. All Eu(1)-Eu(3) bond lengths are 3.93 Å. All Eu(1)-Eu(1) bond lengths are 3.98 Å. In the second Eu site, Eu(2) is bonded to six equivalent Eu(1) and six equivalent Eu(2) atoms to form a mixture of corner, face, and edge-sharing EuEu12 cuboctahedra. All Eu(2)-Eu(2) bond lengths are 3.98 Å. In the third Eu site, Eu(3) is bonded to six equivalent Eu(1) and six equivalent Eu(3) atoms to form a mixture of corner, face, and edge-sharing EuEu12 cuboctahedra. All Eu(3)-Eu(3) bond lengths are 3.98 Å.