The compound described by USm2S5 crystallizes in the orthorhombic Pnma space group. U(1) is bonded to one S(2), one S(3), one S(4), and four equivalent S(1) atoms to form distorted edge-sharing US7 pentagonal bipyramids. Sm(1) is bonded in a 8-coordinate geometry to two equivalent S(1), two equivalent S(2), two equivalent S(3), and two equivalent S(4) atoms. There are four inequivalent S sites. In the first S site, S(1) is bonded to two equivalent U(1) and two equivalent Sm(1) atoms to form distorted SSm2U2 trigonal pyramids that share corners with two equivalent S(3)Sm4U square pyramids, corners with four equivalent S(2)Sm4U square pyramids, corners with two equivalent S(4)Sm4U trigonal bipyramids, corners with six equivalent S(1)Sm2U2 trigonal pyramids,  an edgeedge with one S(2)Sm4U square pyramid, edges with two equivalent S(3)Sm4U square pyramids, edges with two equivalent S(4)Sm4U trigonal bipyramids, and  an edgeedge with one S(1)Sm2U2 trigonal pyramid. In the second S site, S(2) is bonded to one U(1) and four equivalent Sm(1) atoms to form SSm4U square pyramids that share corners with four equivalent S(3)Sm4U square pyramids, corners with five equivalent S(4)Sm4U trigonal bipyramids, corners with eight equivalent S(1)Sm2U2 trigonal pyramids,  an edgeedge with one S(3)Sm4U square pyramid, edges with two equivalent S(2)Sm4U square pyramids, edges with two equivalent S(4)Sm4U trigonal bipyramids, edges with two equivalent S(1)Sm2U2 trigonal pyramids, and  a faceface with one S(3)Sm4U square pyramid. In the third S site, S(3) is bonded to one U(1) and four equivalent Sm(1) atoms to form distorted SSm4U square pyramids that share corners with four equivalent S(2)Sm4U square pyramids, corners with four equivalent S(3)Sm4U square pyramids,  a cornercorner with one S(4)Sm4U trigonal bipyramid, corners with four equivalent S(1)Sm2U2 trigonal pyramids,  an edgeedge with one S(2)Sm4U square pyramid, edges with four equivalent S(4)Sm4U trigonal bipyramids, edges with four equivalent S(1)Sm2U2 trigonal pyramids, and  a faceface with one S(2)Sm4U square pyramid. In the fourth S site, S(4) is bonded to one U(1) and four equivalent Sm(1) atoms to form distorted SSm4U trigonal bipyramids that share  a cornercorner with one S(3)Sm4U square pyramid, corners with five equivalent S(2)Sm4U square pyramids, corners with four equivalent S(4)Sm4U trigonal bipyramids, corners with four equivalent S(1)Sm2U2 trigonal pyramids, edges with two equivalent S(2)Sm4U square pyramids, edges with four equivalent S(3)Sm4U square pyramids, and edges with four equivalent S(1)Sm2U2 trigonal pyramids. is represented by the CIF file [CIF]
data_Sm2US5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.461
_cell_length_b   7.998
_cell_length_c   11.876
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   708.691
_cell_formula_units_Z   4
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Sm  Sm0  1  0.479  0.999  0.322  1.0
  Sm  Sm1  1  0.979  0.499  0.178  1.0
  Sm  Sm2  1  0.021  0.999  0.822  1.0
  Sm  Sm3  1  0.521  0.499  0.678  1.0
  Sm  Sm4  1  0.521  0.001  0.678  1.0
  Sm  Sm5  1  0.021  0.501  0.822  1.0
  Sm  Sm6  1  0.479  0.501  0.322  1.0
  Sm  Sm7  1  0.979  0.001  0.178  1.0
  U  U8  1  0.428  0.750  0.009  1.0
  U  U9  1  0.072  0.750  0.509  1.0
  U  U10  1  0.928  0.250  0.491  1.0
  U  U11  1  0.572  0.250  0.991  1.0
  S  S12  1  0.661  0.543  0.903  1.0
  S  S13  1  0.161  0.043  0.597  1.0
  S  S14  1  0.956  0.250  1.000  1.0
  S  S15  1  0.302  0.750  0.785  1.0
  S  S16  1  0.544  0.250  0.500  1.0
  S  S17  1  0.161  0.457  0.597  1.0
  S  S18  1  0.339  0.457  0.097  1.0
  S  S19  1  0.328  0.250  0.814  1.0
  S  S20  1  0.044  0.750  0.000  1.0
  S  S21  1  0.802  0.250  0.715  1.0
  S  S22  1  0.661  0.957  0.903  1.0
  S  S23  1  0.198  0.750  0.285  1.0
  S  S24  1  0.339  0.043  0.097  1.0
  S  S25  1  0.172  0.250  0.314  1.0
  S  S26  1  0.698  0.250  0.215  1.0
  S  S27  1  0.839  0.543  0.403  1.0
  S  S28  1  0.839  0.957  0.403  1.0
  S  S29  1  0.672  0.750  0.186  1.0
  S  S30  1  0.456  0.750  0.500  1.0
  S  S31  1  0.828  0.750  0.686  1.0
[/CIF]
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The compound described by USm2S5 crystallizes in the orthorhombic Pnma space group. U(1) is bonded to one S(2), one S(3), one S(4), and four equivalent S(1) atoms to form distorted edge-sharing US7 pentagonal bipyramids. Sm(1) is bonded in a 8-coordinate geometry to two equivalent S(1), two equivalent S(2), two equivalent S(3), and two equivalent S(4) atoms. There are four inequivalent S sites. In the first S site, S(1) is bonded to two equivalent U(1) and two equivalent Sm(1) atoms to form distorted SSm2U2 trigonal pyramids that share corners with two equivalent S(3)Sm4U square pyramids, corners with four equivalent S(2)Sm4U square pyramids, corners with two equivalent S(4)Sm4U trigonal bipyramids, corners with six equivalent S(1)Sm2U2 trigonal pyramids,  an edgeedge with one S(2)Sm4U square pyramid, edges with two equivalent S(3)Sm4U square pyramids, edges with two equivalent S(4)Sm4U trigonal bipyramids, and  an edgeedge with one S(1)Sm2U2 trigonal pyramid. In the second S site, S(2) is bonded to one U(1) and four equivalent Sm(1) atoms to form SSm4U square pyramids that share corners with four equivalent S(3)Sm4U square pyramids, corners with five equivalent S(4)Sm4U trigonal bipyramids, corners with eight equivalent S(1)Sm2U2 trigonal pyramids,  an edgeedge with one S(3)Sm4U square pyramid, edges with two equivalent S(2)Sm4U square pyramids, edges with two equivalent S(4)Sm4U trigonal bipyramids, edges with two equivalent S(1)Sm2U2 trigonal pyramids, and  a faceface with one S(3)Sm4U square pyramid. In the third S site, S(3) is bonded to one U(1) and four equivalent Sm(1) atoms to form distorted SSm4U square pyramids that share corners with four equivalent S(2)Sm4U square pyramids, corners with four equivalent S(3)Sm4U square pyramids,  a cornercorner with one S(4)Sm4U trigonal bipyramid, corners with four equivalent S(1)Sm2U2 trigonal pyramids,  an edgeedge with one S(2)Sm4U square pyramid, edges with four equivalent S(4)Sm4U trigonal bipyramids, edges with four equivalent S(1)Sm2U2 trigonal pyramids, and  a faceface with one S(2)Sm4U square pyramid. In the fourth S site, S(4) is bonded to one U(1) and four equivalent Sm(1) atoms to form distorted SSm4U trigonal bipyramids that share  a cornercorner with one S(3)Sm4U square pyramid, corners with five equivalent S(2)Sm4U square pyramids, corners with four equivalent S(4)Sm4U trigonal bipyramids, corners with four equivalent S(1)Sm2U2 trigonal pyramids, edges with two equivalent S(2)Sm4U square pyramids, edges with four equivalent S(3)Sm4U square pyramids, and edges with four equivalent S(1)Sm2U2 trigonal pyramids. is represented by the CIF file [CIF]
data_Sm2US5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.461
_cell_length_b   7.998
_cell_length_c   11.876
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   708.691
_cell_formula_units_Z   4
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Sm  Sm0  1  0.479  0.999  0.322  1.0
  Sm  Sm1  1  0.979  0.499  0.178  1.0
  Sm  Sm2  1  0.021  0.999  0.822  1.0
  Sm  Sm3  1  0.521  0.499  0.678  1.0
  Sm  Sm4  1  0.521  0.001  0.678  1.0
  Sm  Sm5  1  0.021  0.501  0.822  1.0
  Sm  Sm6  1  0.479  0.501  0.322  1.0
  Sm  Sm7  1  0.979  0.001  0.178  1.0
  U  U8  1  0.428  0.750  0.009  1.0
  U  U9  1  0.072  0.750  0.509  1.0
  U  U10  1  0.928  0.250  0.491  1.0
  U  U11  1  0.572  0.250  0.991  1.0
  S  S12  1  0.661  0.543  0.903  1.0
  S  S13  1  0.161  0.043  0.597  1.0
  S  S14  1  0.956  0.250  1.000  1.0
  S  S15  1  0.302  0.750  0.785  1.0
  S  S16  1  0.544  0.250  0.500  1.0
  S  S17  1  0.161  0.457  0.597  1.0
  S  S18  1  0.339  0.457  0.097  1.0
  S  S19  1  0.328  0.250  0.814  1.0
  S  S20  1  0.044  0.750  0.000  1.0
  S  S21  1  0.802  0.250  0.715  1.0
  S  S22  1  0.661  0.957  0.903  1.0
  S  S23  1  0.198  0.750  0.285  1.0
  S  S24  1  0.339  0.043  0.097  1.0
  S  S25  1  0.172  0.250  0.314  1.0
  S  S26  1  0.698  0.250  0.215  1.0
  S  S27  1  0.839  0.543  0.403  1.0
  S  S28  1  0.839  0.957  0.403  1.0
  S  S29  1  0.672  0.750  0.186  1.0
  S  S30  1  0.456  0.750  0.500  1.0
  S  S31  1  0.828  0.750  0.686  1.0
[/CIF]
.