Dy5B2(O2F3)3 crystallizes in the monoclinic C2/c space group. There are three inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 9-coordinate geometry to one O(1), one O(3), two equivalent O(2), one F(2), two equivalent F(1), and two equivalent F(4) atoms. In the second Dy site, Dy(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one F(1), one F(3), one F(5), and two equivalent F(2) atoms. In the third Dy site, Dy(3) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(3), one F(3), and four equivalent F(5) atoms. B(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(2) is bonded in a distorted single-bond geometry to one Dy(2), two equivalent Dy(1), and one B(1) atom. In the second O site, O(3) is bonded in a distorted single-bond geometry to one Dy(1), one Dy(2), one Dy(3), and one B(1) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to one Dy(1), one Dy(2), one Dy(3), and one B(1) atom. There are five inequivalent F sites. In the first F site, F(5) is bonded in a distorted trigonal planar geometry to one Dy(2) and two equivalent Dy(3) atoms. In the second F site, F(3) is bonded in a distorted trigonal planar geometry to one Dy(3) and two equivalent Dy(2) atoms. In the third F site, F(1) is bonded in a distorted trigonal non-coplanar geometry to one Dy(2) and two equivalent Dy(1) atoms. In the fourth F site, F(2) is bonded in a distorted trigonal planar geometry to one Dy(1) and two equivalent Dy(2) atoms. In the fifth F site, F(4) is bonded in a 2-coordinate geometry to two equivalent Dy(1) atoms.
Dy5B2(O2F3)3 crystallizes in the monoclinic C2/c space group. There are three inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 9-coordinate geometry to one O(1), one O(3), two equivalent O(2), one F(2), two equivalent F(1), and two equivalent F(4) atoms. The Dy(1)-O(1) bond length is 2.58 Å. The Dy(1)-O(3) bond length is 2.51 Å. There is one shorter (2.34 Å) and one longer (2.35 Å) Dy(1)-O(2) bond length. The Dy(1)-F(2) bond length is 2.42 Å. There is one shorter (2.28 Å) and one longer (2.36 Å) Dy(1)-F(1) bond length. There is one shorter (2.22 Å) and one longer (2.25 Å) Dy(1)-F(4) bond length. In the second Dy site, Dy(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one F(1), one F(3), one F(5), and two equivalent F(2) atoms. The Dy(2)-O(1) bond length is 2.34 Å. The Dy(2)-O(2) bond length is 2.44 Å. The Dy(2)-O(3) bond length is 2.34 Å. The Dy(2)-F(1) bond length is 2.36 Å. The Dy(2)-F(3) bond length is 2.52 Å. The Dy(2)-F(5) bond length is 2.24 Å. There is one shorter (2.27 Å) and one longer (2.30 Å) Dy(2)-F(2) bond length. In the third Dy site, Dy(3) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(3), one F(3), and four equivalent F(5) atoms. Both Dy(3)-O(1) bond lengths are 2.35 Å. Both Dy(3)-O(3) bond lengths are 2.38 Å. The Dy(3)-F(3) bond length is 2.30 Å. There are two shorter (2.46 Å) and two longer (2.62 Å) Dy(3)-F(5) bond lengths. B(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. The B(1)-O(1) bond length is 1.37 Å. The B(1)-O(2) bond length is 1.40 Å. The B(1)-O(3) bond length is 1.39 Å. There are three inequivalent O sites. In the first O site, O(2) is bonded in a distorted single-bond geometry to one Dy(2), two equivalent Dy(1), and one B(1) atom. In the second O site, O(3) is bonded in a distorted single-bond geometry to one Dy(1), one Dy(2), one Dy(3), and one B(1) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to one Dy(1), one Dy(2), one Dy(3), and one B(1) atom. There are five inequivalent F sites. In the first F site, F(5) is bonded in a distorted trigonal planar geometry to one Dy(2) and two equivalent Dy(3) atoms. In the second F site, F(3) is bonded in a distorted trigonal planar geometry to one Dy(3) and two equivalent Dy(2) atoms. In the third F site, F(1) is bonded in a distorted trigonal non-coplanar geometry to one Dy(2) and two equivalent Dy(1) atoms. In the fourth F site, F(2) is bonded in a distorted trigonal planar geometry to one Dy(1) and two equivalent Dy(2) atoms. In the fifth F site, F(4) is bonded in a 2-coordinate geometry to two equivalent Dy(1) atoms.