SmO(OH) crystallizes in the monoclinic P2_1/m space group. Sm(1) is bonded in a 7-coordinate geometry to three equivalent O(2) and four equivalent O(1) atoms. H(1) is bonded in a single-bond geometry to one O(2) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Sm(1) atoms to form a mixture of edge and corner-sharing OSm4 tetrahedra. In the second O site, O(2) is bonded in a single-bond geometry to three equivalent Sm(1) and one H(1) atom.
SmO(OH) crystallizes in the monoclinic P2_1/m space group. Sm(1) is bonded in a 7-coordinate geometry to three equivalent O(2) and four equivalent O(1) atoms. There is one shorter (2.43 Å) and two longer (2.53 Å) Sm(1)-O(2) bond lengths. There are three shorter (2.33 Å) and one longer (2.36 Å) Sm(1)-O(1) bond length. H(1) is bonded in a single-bond geometry to one O(2) atom. The H(1)-O(2) bond length is 0.97 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Sm(1) atoms to form a mixture of edge and corner-sharing OSm4 tetrahedra. In the second O site, O(2) is bonded in a single-bond geometry to three equivalent Sm(1) and one H(1) atom.