SmO9I crystallizes in the monoclinic P2_1/c space group. Sm(1) is bonded in a 8-coordinate geometry to one O(3), one O(4), one O(7), one O(9), two equivalent O(1), and two equivalent O(6) atoms. There are nine inequivalent O sites. In the first O site, O(7) is bonded in a water-like geometry to one Sm(1) and one I(1) atom. In the second O site, O(8) is bonded in a single-bond geometry to one I(1) atom. In the third O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Sm(1) and one I(1) atom. In the fourth O site, O(9) is bonded in a water-like geometry to one Sm(1) and one O(5) atom. In the fifth O site, O(2) is bonded in a single-bond geometry to one I(1) atom. In the sixth O site, O(3) is bonded in a water-like geometry to one Sm(1) and one I(1) atom. In the seventh O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Sm(1) and one O(5) atom. In the eighth O site, O(5) is bonded in a bent 120 degrees geometry to one O(4) and one O(9) atom. In the ninth O site, O(6) is bonded in a distorted trigonal planar geometry to two equivalent Sm(1) and one I(1) atom. I(1) is bonded in an octahedral geometry to one O(1), one O(2), one O(3), one O(6), one O(7), and one O(8) atom.
SmO9I crystallizes in the monoclinic P2_1/c space group. Sm(1) is bonded in a 8-coordinate geometry to one O(3), one O(4), one O(7), one O(9), two equivalent O(1), and two equivalent O(6) atoms. The Sm(1)-O(3) bond length is 2.46 Å. The Sm(1)-O(4) bond length is 2.60 Å. The Sm(1)-O(7) bond length is 2.43 Å. The Sm(1)-O(9) bond length is 2.66 Å. There is one shorter (2.43 Å) and one longer (2.44 Å) Sm(1)-O(1) bond length. There is one shorter (2.42 Å) and one longer (2.47 Å) Sm(1)-O(6) bond length. There are nine inequivalent O sites. In the first O site, O(7) is bonded in a water-like geometry to one Sm(1) and one I(1) atom. The O(7)-I(1) bond length is 1.89 Å. In the second O site, O(8) is bonded in a single-bond geometry to one I(1) atom. The O(8)-I(1) bond length is 1.87 Å. In the third O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Sm(1) and one I(1) atom. The O(1)-I(1) bond length is 1.91 Å. In the fourth O site, O(9) is bonded in a water-like geometry to one Sm(1) and one O(5) atom. The O(9)-O(5) bond length is 1.30 Å. In the fifth O site, O(2) is bonded in a single-bond geometry to one I(1) atom. The O(2)-I(1) bond length is 1.86 Å. In the sixth O site, O(3) is bonded in a water-like geometry to one Sm(1) and one I(1) atom. The O(3)-I(1) bond length is 1.89 Å. In the seventh O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Sm(1) and one O(5) atom. The O(4)-O(5) bond length is 1.29 Å. In the eighth O site, O(5) is bonded in a bent 120 degrees geometry to one O(4) and one O(9) atom. In the ninth O site, O(6) is bonded in a distorted trigonal planar geometry to two equivalent Sm(1) and one I(1) atom. The O(6)-I(1) bond length is 1.93 Å. I(1) is bonded in an octahedral geometry to one O(1), one O(2), one O(3), one O(6), one O(7), and one O(8) atom.