DyCe9O20 is Fluorite-derived structured and crystallizes in the triclinic P-1 space group. Dy(1) is bonded in a body-centered cubic geometry to two equivalent O(10), two equivalent O(2), two equivalent O(3), and two equivalent O(8) atoms. There are five inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a body-centered cubic geometry to one O(10), one O(4), one O(7), one O(8), two equivalent O(1), and two equivalent O(5) atoms. In the second Ce site, Ce(2) is bonded in a body-centered cubic geometry to two equivalent O(10), two equivalent O(3), two equivalent O(6), and two equivalent O(7) atoms. In the third Ce site, Ce(3) is bonded in a body-centered cubic geometry to one O(1), one O(10), one O(5), one O(6), one O(8), one O(9), and two equivalent O(2) atoms. In the fourth Ce site, Ce(4) is bonded in a body-centered cubic geometry to one O(1), one O(3), one O(7), one O(8), two equivalent O(4), and two equivalent O(9) atoms. In the fifth Ce site, Ce(5) is bonded in a body-centered cubic geometry to one O(2), one O(3), one O(4), one O(5), one O(7), one O(9), and two equivalent O(6) atoms. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Ce(3), one Ce(4), and two equivalent Ce(1) atoms to form OCe4 tetrahedra that share  a cornercorner with one O(10)Ce3Dy tetrahedra,  a cornercorner with one O(3)Ce3Dy tetrahedra,  a cornercorner with one O(6)Ce4 tetrahedra,  a cornercorner with one O(7)Ce4 tetrahedra,  a cornercorner with one O(9)Ce4 tetrahedra, corners with two equivalent O(2)Ce3Dy tetrahedra, corners with two equivalent O(4)Ce4 tetrahedra, corners with three equivalent O(5)Ce4 tetrahedra, corners with four equivalent O(8)Ce3Dy tetrahedra,  an edgeedge with one O(10)Ce3Dy tetrahedra,  an edgeedge with one O(1)Ce4 tetrahedra,  an edgeedge with one O(4)Ce4 tetrahedra,  an edgeedge with one O(5)Ce4 tetrahedra,  an edgeedge with one O(7)Ce4 tetrahedra, and  an edgeedge with one O(9)Ce4 tetrahedra. In the second O site, O(2) is bonded to one Dy(1), one Ce(5), and two equivalent Ce(3) atoms to form OCe3Dy tetrahedra that share  a cornercorner with one O(2)Ce3Dy tetrahedra,  a cornercorner with one O(3)Ce3Dy tetrahedra,  a cornercorner with one O(4)Ce4 tetrahedra,  a cornercorner with one O(7)Ce4 tetrahedra,  a cornercorner with one O(9)Ce4 tetrahedra, corners with two equivalent O(10)Ce3Dy tetrahedra, corners with two equivalent O(8)Ce3Dy tetrahedra, corners with two equivalent O(1)Ce4 tetrahedra, corners with two equivalent O(6)Ce4 tetrahedra, corners with three equivalent O(5)Ce4 tetrahedra,  an edgeedge with one O(10)Ce3Dy tetrahedra,  an edgeedge with one O(2)Ce3Dy tetrahedra,  an edgeedge with one O(3)Ce3Dy tetrahedra,  an edgeedge with one O(8)Ce3Dy tetrahedra,  an edgeedge with one O(6)Ce4 tetrahedra, and  an edgeedge with one O(9)Ce4 tetrahedra. In the third O site, O(3) is bonded to one Dy(1), one Ce(2), one Ce(4), and one Ce(5) atom to form OCe3Dy tetrahedra that share  a cornercorner with one O(2)Ce3Dy tetrahedra,  a cornercorner with one O(8)Ce3Dy tetrahedra,  a cornercorner with one O(1)Ce4 tetrahedra,  a cornercorner with one O(4)Ce4 tetrahedra,  a cornercorner with one O(5)Ce4 tetrahedra, corners with two equivalent O(10)Ce3Dy tetrahedra, corners with two equivalent O(3)Ce3Dy tetrahedra, corners with two equivalent O(6)Ce4 tetrahedra, corners with two equivalent O(7)Ce4 tetrahedra, corners with three equivalent O(9)Ce4 tetrahedra,  an edgeedge with one O(10)Ce3Dy tetrahedra,  an edgeedge with one O(2)Ce3Dy tetrahedra,  an edgeedge with one O(8)Ce3Dy tetrahedra,  an edgeedge with one O(4)Ce4 tetrahedra,  an edgeedge with one O(6)Ce4 tetrahedra, and  an edgeedge with one O(7)Ce4 tetrahedra. In the fourth O site, O(4) is bonded to one Ce(1), one Ce(5), and two equivalent Ce(4) atoms to form OCe4 tetrahedra that share  a cornercorner with one O(10)Ce3Dy tetrahedra,  a cornercorner with one O(2)Ce3Dy tetrahedra,  a cornercorner with one O(3)Ce3Dy tetrahedra,  a cornercorner with one O(8)Ce3Dy tetrahedra,  a cornercorner with one O(5)Ce4 tetrahedra, corners with two equivalent O(1)Ce4 tetrahedra, corners with two equivalent O(6)Ce4 tetrahedra, corners with three equivalent O(9)Ce4 tetrahedra, corners with four equivalent O(7)Ce4 tetrahedra,  an edgeedge with one O(3)Ce3Dy tetrahedra,  an edgeedge with one O(8)Ce3Dy tetrahedra,  an edgeedge with one O(1)Ce4 tetrahedra,  an edgeedge with one O(4)Ce4 tetrahedra,  an edgeedge with one O(5)Ce4 tetrahedra, and  an edgeedge with one O(9)Ce4 tetrahedra. In the fifth O site, O(5) is bonded to one Ce(3), one Ce(5), and two equivalent Ce(1) atoms to form OCe4 tetrahedra that share  a cornercorner with one O(3)Ce3Dy tetrahedra,  a cornercorner with one O(8)Ce3Dy tetrahedra,  a cornercorner with one O(4)Ce4 tetrahedra,  a cornercorner with one O(6)Ce4 tetrahedra,  a cornercorner with one O(7)Ce4 tetrahedra, corners with two equivalent O(9)Ce4 tetrahedra, corners with three equivalent O(10)Ce3Dy tetrahedra, corners with three equivalent O(2)Ce3Dy tetrahedra, corners with three equivalent O(1)Ce4 tetrahedra,  an edgeedge with one O(8)Ce3Dy tetrahedra,  an edgeedge with one O(1)Ce4 tetrahedra,  an edgeedge with one O(4)Ce4 tetrahedra,  an edgeedge with one O(5)Ce4 tetrahedra,  an edgeedge with one O(6)Ce4 tetrahedra, and  an edgeedge with one O(7)Ce4 tetrahedra. In the sixth O site, O(6) is bonded to one Ce(2), one Ce(3), and two equivalent Ce(5) atoms to form OCe4 tetrahedra that share  a cornercorner with one O(10)Ce3Dy tetrahedra,  a cornercorner with one O(8)Ce3Dy tetrahedra,  a cornercorner with one O(1)Ce4 tetrahedra,  a cornercorner with one O(5)Ce4 tetrahedra,  a cornercorner with one O(6)Ce4 tetrahedra, corners with two equivalent O(2)Ce3Dy tetrahedra, corners with two equivalent O(3)Ce3Dy tetrahedra, corners with two equivalent O(4)Ce4 tetrahedra, corners with two equivalent O(7)Ce4 tetrahedra, corners with three equivalent O(9)Ce4 tetrahedra,  an edgeedge with one O(10)Ce3Dy tetrahedra,  an edgeedge with one O(2)Ce3Dy tetrahedra,  an edgeedge with one O(3)Ce3Dy tetrahedra,  an edgeedge with one O(5)Ce4 tetrahedra,  an edgeedge with one O(6)Ce4 tetrahedra, and  an edgeedge with one O(7)Ce4 tetrahedra. In the seventh O site, O(7) is bonded to one Ce(1), one Ce(2), one Ce(4), and one Ce(5) atom to form OCe4 tetrahedra that share  a cornercorner with one O(10)Ce3Dy tetrahedra,  a cornercorner with one O(2)Ce3Dy tetrahedra,  a cornercorner with one O(1)Ce4 tetrahedra,  a cornercorner with one O(5)Ce4 tetrahedra,  a cornercorner with one O(7)Ce4 tetrahedra,  a cornercorner with one O(9)Ce4 tetrahedra, corners with two equivalent O(3)Ce3Dy tetrahedra, corners with two equivalent O(8)Ce3Dy tetrahedra, corners with two equivalent O(6)Ce4 tetrahedra, corners with four equivalent O(4)Ce4 tetrahedra,  an edgeedge with one O(10)Ce3Dy tetrahedra,  an edgeedge with one O(3)Ce3Dy tetrahedra,  an edgeedge with one O(1)Ce4 tetrahedra,  an edgeedge with one O(5)Ce4 tetrahedra,  an edgeedge with one O(6)Ce4 tetrahedra, and  an edgeedge with one O(9)Ce4 tetrahedra. In the eighth O site, O(8) is bonded to one Dy(1), one Ce(1), one Ce(3), and one Ce(4) atom to form OCe3Dy tetrahedra that share  a cornercorner with one O(3)Ce3Dy tetrahedra,  a cornercorner with one O(8)Ce3Dy tetrahedra,  a cornercorner with one O(4)Ce4 tetrahedra,  a cornercorner with one O(5)Ce4 tetrahedra,  a cornercorner with one O(6)Ce4 tetrahedra,  a cornercorner with one O(9)Ce4 tetrahedra, corners with two equivalent O(10)Ce3Dy tetrahedra, corners with two equivalent O(2)Ce3Dy tetrahedra, corners with two equivalent O(7)Ce4 tetrahedra, corners with four equivalent O(1)Ce4 tetrahedra,  an edgeedge with one O(10)Ce3Dy tetrahedra,  an edgeedge with one O(2)Ce3Dy tetrahedra,  an edgeedge with one O(3)Ce3Dy tetrahedra,  an edgeedge with one O(4)Ce4 tetrahedra,  an edgeedge with one O(5)Ce4 tetrahedra, and  an edgeedge with one O(9)Ce4 tetrahedra. In the ninth O site, O(9) is bonded to one Ce(3), one Ce(5), and two equivalent Ce(4) atoms to form OCe4 tetrahedra that share  a cornercorner with one O(10)Ce3Dy tetrahedra,  a cornercorner with one O(2)Ce3Dy tetrahedra,  a cornercorner with one O(8)Ce3Dy tetrahedra,  a cornercorner with one O(1)Ce4 tetrahedra,  a cornercorner with one O(7)Ce4 tetrahedra, corners with two equivalent O(5)Ce4 tetrahedra, corners with three equivalent O(3)Ce3Dy tetrahedra, corners with three equivalent O(4)Ce4 tetrahedra, corners with three equivalent O(6)Ce4 tetrahedra,  an edgeedge with one O(2)Ce3Dy tetrahedra,  an edgeedge with one O(8)Ce3Dy tetrahedra,  an edgeedge with one O(1)Ce4 tetrahedra,  an edgeedge with one O(4)Ce4 tetrahedra,  an edgeedge with one O(7)Ce4 tetrahedra, and  an edgeedge with one O(9)Ce4 tetrahedra. In the tenth O site, O(10) is bonded to one Dy(1), one Ce(1), one Ce(2), and one Ce(3) atom to form OCe3Dy tetrahedra that share  a cornercorner with one O(1)Ce4 tetrahedra,  a cornercorner with one O(4)Ce4 tetrahedra,  a cornercorner with one O(6)Ce4 tetrahedra,  a cornercorner with one O(7)Ce4 tetrahedra,  a cornercorner with one O(9)Ce4 tetrahedra, corners with two equivalent O(10)Ce3Dy tetrahedra, corners with two equivalent O(2)Ce3Dy tetrahedra, corners with two equivalent O(3)Ce3Dy tetrahedra, corners with two equivalent O(8)Ce3Dy tetrahedra, corners with three equivalent O(5)Ce4 tetrahedra,  an edgeedge with one O(2)Ce3Dy tetrahedra,  an edgeedge with one O(3)Ce3Dy tetrahedra,  an edgeedge with one O(8)Ce3Dy tetrahedra,  an edgeedge with one O(1)Ce4 tetrahedra,  an edgeedge with one O(6)Ce4 tetrahedra, and  an edgeedge with one O(7)Ce4 tetrahedra.
DyCe9O20 is Fluorite-derived structured and crystallizes in the triclinic P-1 space group. Dy(1) is bonded in a body-centered cubic geometry to two equivalent O(10), two equivalent O(2), two equivalent O(3), and two equivalent O(8) atoms. Both Dy(1)-O(10) bond lengths are 2.37 Å. Both Dy(1)-O(2) bond lengths are 2.37 Å. Both Dy(1)-O(3) bond lengths are 2.37 Å. Both Dy(1)-O(8) bond lengths are 2.36 Å. There are five inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a body-centered cubic geometry to one O(10), one O(4), one O(7), one O(8), two equivalent O(1), and two equivalent O(5) atoms. The Ce(1)-O(10) bond length is 2.33 Å. The Ce(1)-O(4) bond length is 2.36 Å. The Ce(1)-O(7) bond length is 2.35 Å. The Ce(1)-O(8) bond length is 2.33 Å. There is one shorter (2.35 Å) and one longer (2.36 Å) Ce(1)-O(1) bond length. There is one shorter (2.35 Å) and one longer (2.36 Å) Ce(1)-O(5) bond length. In the second Ce site, Ce(2) is bonded in a body-centered cubic geometry to two equivalent O(10), two equivalent O(3), two equivalent O(6), and two equivalent O(7) atoms. Both Ce(2)-O(10) bond lengths are 2.34 Å. Both Ce(2)-O(3) bond lengths are 2.35 Å. Both Ce(2)-O(6) bond lengths are 2.35 Å. Both Ce(2)-O(7) bond lengths are 2.35 Å. In the third Ce site, Ce(3) is bonded in a body-centered cubic geometry to one O(1), one O(10), one O(5), one O(6), one O(8), one O(9), and two equivalent O(2) atoms. The Ce(3)-O(1) bond length is 2.37 Å. The Ce(3)-O(10) bond length is 2.34 Å. The Ce(3)-O(5) bond length is 2.36 Å. The Ce(3)-O(6) bond length is 2.35 Å. The Ce(3)-O(8) bond length is 2.35 Å. The Ce(3)-O(9) bond length is 2.35 Å. Both Ce(3)-O(2) bond lengths are 2.34 Å. In the fourth Ce site, Ce(4) is bonded in a body-centered cubic geometry to one O(1), one O(3), one O(7), one O(8), two equivalent O(4), and two equivalent O(9) atoms. The Ce(4)-O(1) bond length is 2.36 Å. The Ce(4)-O(3) bond length is 2.33 Å. The Ce(4)-O(7) bond length is 2.35 Å. The Ce(4)-O(8) bond length is 2.33 Å. Both Ce(4)-O(4) bond lengths are 2.35 Å. There is one shorter (2.35 Å) and one longer (2.36 Å) Ce(4)-O(9) bond length. In the fifth Ce site, Ce(5) is bonded in a body-centered cubic geometry to one O(2), one O(3), one O(4), one O(5), one O(7), one O(9), and two equivalent O(6) atoms. The Ce(5)-O(2) bond length is 2.33 Å. The Ce(5)-O(3) bond length is 2.33 Å. The Ce(5)-O(4) bond length is 2.35 Å. The Ce(5)-O(5) bond length is 2.36 Å. The Ce(5)-O(7) bond length is 2.36 Å. The Ce(5)-O(9) bond length is 2.35 Å. Both Ce(5)-O(6) bond lengths are 2.35 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Ce(3), one Ce(4), and two equivalent Ce(1) atoms to form OCe4 tetrahedra that share  a cornercorner with one O(10)Ce3Dy tetrahedra,  a cornercorner with one O(3)Ce3Dy tetrahedra,  a cornercorner with one O(6)Ce4 tetrahedra,  a cornercorner with one O(7)Ce4 tetrahedra,  a cornercorner with one O(9)Ce4 tetrahedra, corners with two equivalent O(2)Ce3Dy tetrahedra, corners with two equivalent O(4)Ce4 tetrahedra, corners with three equivalent O(5)Ce4 tetrahedra, corners with four equivalent O(8)Ce3Dy tetrahedra,  an edgeedge with one O(10)Ce3Dy tetrahedra,  an edgeedge with one O(1)Ce4 tetrahedra,  an edgeedge with one O(4)Ce4 tetrahedra,  an edgeedge with one O(5)Ce4 tetrahedra,  an edgeedge with one O(7)Ce4 tetrahedra, and  an edgeedge with one O(9)Ce4 tetrahedra. In the second O site, O(2) is bonded to one Dy(1), one Ce(5), and two equivalent Ce(3) atoms to form OCe3Dy tetrahedra that share  a cornercorner with one O(2)Ce3Dy tetrahedra,  a cornercorner with one O(3)Ce3Dy tetrahedra,  a cornercorner with one O(4)Ce4 tetrahedra,  a cornercorner with one O(7)Ce4 tetrahedra,  a cornercorner with one O(9)Ce4 tetrahedra, corners with two equivalent O(10)Ce3Dy tetrahedra, corners with two equivalent O(8)Ce3Dy tetrahedra, corners with two equivalent O(1)Ce4 tetrahedra, corners with two equivalent O(6)Ce4 tetrahedra, corners with three equivalent O(5)Ce4 tetrahedra,  an edgeedge with one O(10)Ce3Dy tetrahedra,  an edgeedge with one O(2)Ce3Dy tetrahedra,  an edgeedge with one O(3)Ce3Dy tetrahedra,  an edgeedge with one O(8)Ce3Dy tetrahedra,  an edgeedge with one O(6)Ce4 tetrahedra, and  an edgeedge with one O(9)Ce4 tetrahedra. In the third O site, O(3) is bonded to one Dy(1), one Ce(2), one Ce(4), and one Ce(5) atom to form OCe3Dy tetrahedra that share  a cornercorner with one O(2)Ce3Dy tetrahedra,  a cornercorner with one O(8)Ce3Dy tetrahedra,  a cornercorner with one O(1)Ce4 tetrahedra,  a cornercorner with one O(4)Ce4 tetrahedra,  a cornercorner with one O(5)Ce4 tetrahedra, corners with two equivalent O(10)Ce3Dy tetrahedra, corners with two equivalent O(3)Ce3Dy tetrahedra, corners with two equivalent O(6)Ce4 tetrahedra, corners with two equivalent O(7)Ce4 tetrahedra, corners with three equivalent O(9)Ce4 tetrahedra,  an edgeedge with one O(10)Ce3Dy tetrahedra,  an edgeedge with one O(2)Ce3Dy tetrahedra,  an edgeedge with one O(8)Ce3Dy tetrahedra,  an edgeedge with one O(4)Ce4 tetrahedra,  an edgeedge with one O(6)Ce4 tetrahedra, and  an edgeedge with one O(7)Ce4 tetrahedra. In the fourth O site, O(4) is bonded to one Ce(1), one Ce(5), and two equivalent Ce(4) atoms to form OCe4 tetrahedra that share  a cornercorner with one O(10)Ce3Dy tetrahedra,  a cornercorner with one O(2)Ce3Dy tetrahedra,  a cornercorner with one O(3)Ce3Dy tetrahedra,  a cornercorner with one O(8)Ce3Dy tetrahedra,  a cornercorner with one O(5)Ce4 tetrahedra, corners with two equivalent O(1)Ce4 tetrahedra, corners with two equivalent O(6)Ce4 tetrahedra, corners with three equivalent O(9)Ce4 tetrahedra, corners with four equivalent O(7)Ce4 tetrahedra,  an edgeedge with one O(3)Ce3Dy tetrahedra,  an edgeedge with one O(8)Ce3Dy tetrahedra,  an edgeedge with one O(1)Ce4 tetrahedra,  an edgeedge with one O(4)Ce4 tetrahedra,  an edgeedge with one O(5)Ce4 tetrahedra, and  an edgeedge with one O(9)Ce4 tetrahedra. In the fifth O site, O(5) is bonded to one Ce(3), one Ce(5), and two equivalent Ce(1) atoms to form OCe4 tetrahedra that share  a cornercorner with one O(3)Ce3Dy tetrahedra,  a cornercorner with one O(8)Ce3Dy tetrahedra,  a cornercorner with one O(4)Ce4 tetrahedra,  a cornercorner with one O(6)Ce4 tetrahedra,  a cornercorner with one O(7)Ce4 tetrahedra, corners with two equivalent O(9)Ce4 tetrahedra, corners with three equivalent O(10)Ce3Dy tetrahedra, corners with three equivalent O(2)Ce3Dy tetrahedra, corners with three equivalent O(1)Ce4 tetrahedra,  an edgeedge with one O(8)Ce3Dy tetrahedra,  an edgeedge with one O(1)Ce4 tetrahedra,  an edgeedge with one O(4)Ce4 tetrahedra,  an edgeedge with one O(5)Ce4 tetrahedra,  an edgeedge with one O(6)Ce4 tetrahedra, and  an edgeedge with one O(7)Ce4 tetrahedra. In the sixth O site, O(6) is bonded to one Ce(2), one Ce(3), and two equivalent Ce(5) atoms to form OCe4 tetrahedra that share  a cornercorner with one O(10)Ce3Dy tetrahedra,  a cornercorner with one O(8)Ce3Dy tetrahedra,  a cornercorner with one O(1)Ce4 tetrahedra,  a cornercorner with one O(5)Ce4 tetrahedra,  a cornercorner with one O(6)Ce4 tetrahedra, corners with two equivalent O(2)Ce3Dy tetrahedra, corners with two equivalent O(3)Ce3Dy tetrahedra, corners with two equivalent O(4)Ce4 tetrahedra, corners with two equivalent O(7)Ce4 tetrahedra, corners with three equivalent O(9)Ce4 tetrahedra,  an edgeedge with one O(10)Ce3Dy tetrahedra,  an edgeedge with one O(2)Ce3Dy tetrahedra,  an edgeedge with one O(3)Ce3Dy tetrahedra,  an edgeedge with one O(5)Ce4 tetrahedra,  an edgeedge with one O(6)Ce4 tetrahedra, and  an edgeedge with one O(7)Ce4 tetrahedra. In the seventh O site, O(7) is bonded to one Ce(1), one Ce(2), one Ce(4), and one Ce(5) atom to form OCe4 tetrahedra that share  a cornercorner with one O(10)Ce3Dy tetrahedra,  a cornercorner with one O(2)Ce3Dy tetrahedra,  a cornercorner with one O(1)Ce4 tetrahedra,  a cornercorner with one O(5)Ce4 tetrahedra,  a cornercorner with one O(7)Ce4 tetrahedra,  a cornercorner with one O(9)Ce4 tetrahedra, corners with two equivalent O(3)Ce3Dy tetrahedra, corners with two equivalent O(8)Ce3Dy tetrahedra, corners with two equivalent O(6)Ce4 tetrahedra, corners with four equivalent O(4)Ce4 tetrahedra,  an edgeedge with one O(10)Ce3Dy tetrahedra,  an edgeedge with one O(3)Ce3Dy tetrahedra,  an edgeedge with one O(1)Ce4 tetrahedra,  an edgeedge with one O(5)Ce4 tetrahedra,  an edgeedge with one O(6)Ce4 tetrahedra, and  an edgeedge with one O(9)Ce4 tetrahedra. In the eighth O site, O(8) is bonded to one Dy(1), one Ce(1), one Ce(3), and one Ce(4) atom to form OCe3Dy tetrahedra that share  a cornercorner with one O(3)Ce3Dy tetrahedra,  a cornercorner with one O(8)Ce3Dy tetrahedra,  a cornercorner with one O(4)Ce4 tetrahedra,  a cornercorner with one O(5)Ce4 tetrahedra,  a cornercorner with one O(6)Ce4 tetrahedra,  a cornercorner with one O(9)Ce4 tetrahedra, corners with two equivalent O(10)Ce3Dy tetrahedra, corners with two equivalent O(2)Ce3Dy tetrahedra, corners with two equivalent O(7)Ce4 tetrahedra, corners with four equivalent O(1)Ce4 tetrahedra,  an edgeedge with one O(10)Ce3Dy tetrahedra,  an edgeedge with one O(2)Ce3Dy tetrahedra,  an edgeedge with one O(3)Ce3Dy tetrahedra,  an edgeedge with one O(4)Ce4 tetrahedra,  an edgeedge with one O(5)Ce4 tetrahedra, and  an edgeedge with one O(9)Ce4 tetrahedra. In the ninth O site, O(9) is bonded to one Ce(3), one Ce(5), and two equivalent Ce(4) atoms to form OCe4 tetrahedra that share  a cornercorner with one O(10)Ce3Dy tetrahedra,  a cornercorner with one O(2)Ce3Dy tetrahedra,  a cornercorner with one O(8)Ce3Dy tetrahedra,  a cornercorner with one O(1)Ce4 tetrahedra,  a cornercorner with one O(7)Ce4 tetrahedra, corners with two equivalent O(5)Ce4 tetrahedra, corners with three equivalent O(3)Ce3Dy tetrahedra, corners with three equivalent O(4)Ce4 tetrahedra, corners with three equivalent O(6)Ce4 tetrahedra,  an edgeedge with one O(2)Ce3Dy tetrahedra,  an edgeedge with one O(8)Ce3Dy tetrahedra,  an edgeedge with one O(1)Ce4 tetrahedra,  an edgeedge with one O(4)Ce4 tetrahedra,  an edgeedge with one O(7)Ce4 tetrahedra, and  an edgeedge with one O(9)Ce4 tetrahedra. In the tenth O site, O(10) is bonded to one Dy(1), one Ce(1), one Ce(2), and one Ce(3) atom to form OCe3Dy tetrahedra that share  a cornercorner with one O(1)Ce4 tetrahedra,  a cornercorner with one O(4)Ce4 tetrahedra,  a cornercorner with one O(6)Ce4 tetrahedra,  a cornercorner with one O(7)Ce4 tetrahedra,  a cornercorner with one O(9)Ce4 tetrahedra, corners with two equivalent O(10)Ce3Dy tetrahedra, corners with two equivalent O(2)Ce3Dy tetrahedra, corners with two equivalent O(3)Ce3Dy tetrahedra, corners with two equivalent O(8)Ce3Dy tetrahedra, corners with three equivalent O(5)Ce4 tetrahedra,  an edgeedge with one O(2)Ce3Dy tetrahedra,  an edgeedge with one O(3)Ce3Dy tetrahedra,  an edgeedge with one O(8)Ce3Dy tetrahedra,  an edgeedge with one O(1)Ce4 tetrahedra,  an edgeedge with one O(6)Ce4 tetrahedra, and  an edgeedge with one O(7)Ce4 tetrahedra.