LiSm4(HO2)4 crystallizes in the monoclinic Pm space group. Li(1) is bonded in a 7-coordinate geometry to one H(2), two equivalent H(3), one O(1), one O(6), and two equivalent O(8) atoms. There are four inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 6-coordinate geometry to one O(1), one O(7), two equivalent O(3), and two equivalent O(8) atoms. In the second Sm site, Sm(2) is bonded to one O(4), one O(6), two equivalent O(2), and two equivalent O(5) atoms to form distorted edge-sharing SmO6 octahedra. In the third Sm site, Sm(3) is bonded to one O(3), one O(5), two equivalent O(4), and two equivalent O(7) atoms to form distorted edge-sharing SmO6 octahedra. In the fourth Sm site, Sm(4) is bonded in a 6-coordinate geometry to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(4) and one O(7) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to one Li(1) and one O(1) atom. In the third H site, H(3) is bonded in a 1-coordinate geometry to two equivalent Li(1), one O(3), and one O(8) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(2) and one O(5) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Li(1), one Sm(1), two equivalent Sm(4), and one H(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Sm(4), two equivalent Sm(2), and one H(4) atom. In the third O site, O(3) is bonded to one Sm(3), two equivalent Sm(1), and one H(3) atom to form distorted corner-sharing OSm3H tetrahedra. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Sm(2), two equivalent Sm(3), and one H(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Sm(3), two equivalent Sm(2), and one H(4) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Li(1), one Sm(2), and two equivalent Sm(4) atoms. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sm(1), two equivalent Sm(3), and one H(1) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent Li(1), one Sm(4), two equivalent Sm(1), and one H(3) atom.
LiSm4(HO2)4 crystallizes in the monoclinic Pm space group. Li(1) is bonded in a 7-coordinate geometry to one H(2), two equivalent H(3), one O(1), one O(6), and two equivalent O(8) atoms. The Li(1)-H(2) bond length is 1.88 Å. Both Li(1)-H(3) bond lengths are 2.16 Å. The Li(1)-O(1) bond length is 2.25 Å. The Li(1)-O(6) bond length is 2.00 Å. Both Li(1)-O(8) bond lengths are 2.16 Å. There are four inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 6-coordinate geometry to one O(1), one O(7), two equivalent O(3), and two equivalent O(8) atoms. The Sm(1)-O(1) bond length is 2.49 Å. The Sm(1)-O(7) bond length is 2.25 Å. Both Sm(1)-O(3) bond lengths are 2.40 Å. Both Sm(1)-O(8) bond lengths are 2.66 Å. In the second Sm site, Sm(2) is bonded to one O(4), one O(6), two equivalent O(2), and two equivalent O(5) atoms to form distorted edge-sharing SmO6 octahedra. The Sm(2)-O(4) bond length is 2.39 Å. The Sm(2)-O(6) bond length is 2.34 Å. Both Sm(2)-O(2) bond lengths are 2.30 Å. Both Sm(2)-O(5) bond lengths are 2.46 Å. In the third Sm site, Sm(3) is bonded to one O(3), one O(5), two equivalent O(4), and two equivalent O(7) atoms to form distorted edge-sharing SmO6 octahedra. The Sm(3)-O(3) bond length is 2.26 Å. The Sm(3)-O(5) bond length is 2.53 Å. Both Sm(3)-O(4) bond lengths are 2.49 Å. Both Sm(3)-O(7) bond lengths are 2.31 Å. In the fourth Sm site, Sm(4) is bonded in a 6-coordinate geometry to one O(2), one O(8), two equivalent O(1), and two equivalent O(6) atoms. The Sm(4)-O(2) bond length is 2.25 Å. The Sm(4)-O(8) bond length is 2.47 Å. Both Sm(4)-O(1) bond lengths are 2.52 Å. Both Sm(4)-O(6) bond lengths are 2.33 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(4) and one O(7) atom. The H(1)-O(4) bond length is 1.01 Å. The H(1)-O(7) bond length is 1.75 Å. In the second H site, H(2) is bonded in a distorted single-bond geometry to one Li(1) and one O(1) atom. The H(2)-O(1) bond length is 1.00 Å. In the third H site, H(3) is bonded in a 1-coordinate geometry to two equivalent Li(1), one O(3), and one O(8) atom. The H(3)-O(3) bond length is 1.58 Å. The H(3)-O(8) bond length is 1.04 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(2) and one O(5) atom. The H(4)-O(2) bond length is 1.77 Å. The H(4)-O(5) bond length is 1.00 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Li(1), one Sm(1), two equivalent Sm(4), and one H(2) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Sm(4), two equivalent Sm(2), and one H(4) atom. In the third O site, O(3) is bonded to one Sm(3), two equivalent Sm(1), and one H(3) atom to form distorted corner-sharing OSm3H tetrahedra. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Sm(2), two equivalent Sm(3), and one H(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Sm(3), two equivalent Sm(2), and one H(4) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Li(1), one Sm(2), and two equivalent Sm(4) atoms. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sm(1), two equivalent Sm(3), and one H(1) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent Li(1), one Sm(4), two equivalent Sm(1), and one H(3) atom.