SmO2Cl crystallizes in the monoclinic P2_1/m space group. Sm(1) is bonded in a 10-coordinate geometry to three equivalent O(2), four equivalent O(1), and three equivalent Cl(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to four equivalent Sm(1) and one O(2) atom. In the second O site, O(2) is bonded to three equivalent Sm(1) and one O(1) atom to form a mixture of corner and edge-sharing OSm3O trigonal pyramids. Cl(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Sm(1) atoms.
SmO2Cl crystallizes in the monoclinic P2_1/m space group. Sm(1) is bonded in a 10-coordinate geometry to three equivalent O(2), four equivalent O(1), and three equivalent Cl(1) atoms. There are two shorter (2.35 Å) and one longer (2.43 Å) Sm(1)-O(2) bond length. There are a spread of Sm(1)-O(1) bond distances ranging from 2.47-2.83 Å. There is one shorter (2.79 Å) and two longer (3.02 Å) Sm(1)-Cl(1) bond lengths. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to four equivalent Sm(1) and one O(2) atom. The O(1)-O(2) bond length is 1.49 Å. In the second O site, O(2) is bonded to three equivalent Sm(1) and one O(1) atom to form a mixture of corner and edge-sharing OSm3O trigonal pyramids. Cl(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Sm(1) atoms.