Sm3B2(O2F)3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(3), three equivalent O(2), one F(1), and one F(2) atom. In the second Sm site, Sm(2) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(3), one F(1), and four equivalent F(2) 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(1) is bonded in a distorted single-bond geometry to one Sm(2), two equivalent Sm(1), and one B(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent Sm(1) and one B(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Sm(2), two equivalent Sm(1), and one B(1) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded in a distorted trigonal planar geometry to one Sm(2) and two equivalent Sm(1) atoms. In the second F site, F(2) is bonded in a distorted trigonal planar geometry to one Sm(1) and two equivalent Sm(2) atoms.
Sm3B2(O2F)3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(3), three equivalent O(2), one F(1), and one F(2) atom. There is one shorter (2.43 Å) and one longer (2.63 Å) Sm(1)-O(1) bond length. There is one shorter (2.43 Å) and one longer (2.66 Å) Sm(1)-O(3) bond length. There are a spread of Sm(1)-O(2) bond distances ranging from 2.36-2.57 Å. The Sm(1)-F(1) bond length is 2.59 Å. The Sm(1)-F(2) bond length is 2.31 Å. In the second Sm site, Sm(2) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(3), one F(1), and four equivalent F(2) atoms. Both Sm(2)-O(1) bond lengths are 2.39 Å. Both Sm(2)-O(3) bond lengths are 2.42 Å. The Sm(2)-F(1) bond length is 2.36 Å. There are two shorter (2.52 Å) and two longer (2.61 Å) Sm(2)-F(2) 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 1.38 Å. The B(1)-O(2) bond length is 1.41 Å. The B(1)-O(3) bond length is 1.38 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Sm(2), two equivalent Sm(1), and one B(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to three equivalent Sm(1) and one B(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Sm(2), two equivalent Sm(1), and one B(1) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded in a distorted trigonal planar geometry to one Sm(2) and two equivalent Sm(1) atoms. In the second F site, F(2) is bonded in a distorted trigonal planar geometry to one Sm(1) and two equivalent Sm(2) atoms.