LiU2TmS3O2 crystallizes in the monoclinic Cm space group. Li(1) is bonded in a distorted square co-planar geometry to one S(1), one S(2), and four equivalent O(1) atoms. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 8-coordinate geometry to four equivalent S(2) and four equivalent O(1) atoms. In the second U site, U(2) is bonded in a 8-coordinate geometry to four equivalent S(1) and four equivalent O(1) atoms. Tm(1) is bonded to one S(1), one S(2), and four equivalent S(3) atoms to form a mixture of corner and edge-sharing TmS6 octahedra. The corner-sharing octahedral tilt angles are 5°. There are three inequivalent S sites. In the first S site, S(1) is bonded in a 6-coordinate geometry to one Li(1), four equivalent U(2), and one Tm(1) atom. In the second S site, S(2) is bonded in a 6-coordinate geometry to one Li(1), four equivalent U(1), and one Tm(1) atom. In the third S site, S(3) is bonded in a rectangular see-saw-like geometry to four equivalent Tm(1) atoms. O(1) is bonded to two equivalent Li(1), two equivalent U(1), and two equivalent U(2) atoms to form a mixture of distorted corner, edge, and face-sharing OLi2U4 octahedra. The corner-sharing octahedral tilt angles are 1°.
LiU2TmS3O2 crystallizes in the monoclinic Cm space group. Li(1) is bonded in a distorted square co-planar geometry to one S(1), one S(2), and four equivalent O(1) atoms. The Li(1)-S(1) bond length is 2.61 Å. The Li(1)-S(2) bond length is 2.66 Å. All Li(1)-O(1) bond lengths are 1.90 Å. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 8-coordinate geometry to four equivalent S(2) and four equivalent O(1) atoms. There is one shorter (2.90 Å) and three longer (2.92 Å) U(1)-S(2) bond lengths. There are two shorter (2.44 Å) and two longer (2.45 Å) U(1)-O(1) bond lengths. In the second U site, U(2) is bonded in a 8-coordinate geometry to four equivalent S(1) and four equivalent O(1) atoms. There is one shorter (2.87 Å) and three longer (2.88 Å) U(2)-S(1) bond lengths. There are two shorter (2.48 Å) and two longer (2.51 Å) U(2)-O(1) bond lengths. Tm(1) is bonded to one S(1), one S(2), and four equivalent S(3) atoms to form a mixture of corner and edge-sharing TmS6 octahedra. The corner-sharing octahedral tilt angles are 5°. The Tm(1)-S(1) bond length is 2.67 Å. The Tm(1)-S(2) bond length is 2.66 Å. There is one shorter (2.68 Å) and three longer (2.70 Å) Tm(1)-S(3) bond lengths. There are three inequivalent S sites. In the first S site, S(1) is bonded in a 6-coordinate geometry to one Li(1), four equivalent U(2), and one Tm(1) atom. In the second S site, S(2) is bonded in a 6-coordinate geometry to one Li(1), four equivalent U(1), and one Tm(1) atom. In the third S site, S(3) is bonded in a rectangular see-saw-like geometry to four equivalent Tm(1) atoms. O(1) is bonded to two equivalent Li(1), two equivalent U(1), and two equivalent U(2) atoms to form a mixture of distorted corner, edge, and face-sharing OLi2U4 octahedra. The corner-sharing octahedral tilt angles are 1°.