The compound described by UCe10S16 crystallizes in the tetragonal P-4 space group. U(1) is bonded to four equivalent S(2) and four equivalent S(4) atoms to form distorted US8 hexagonal bipyramids that share corners with four equivalent Ce(1)S8 hexagonal bipyramids, corners with four equivalent Ce(3)S8 hexagonal bipyramids, edges with four equivalent Ce(2)S8 hexagonal bipyramids, faces with four equivalent Ce(1)S8 hexagonal bipyramids, and faces with four equivalent Ce(3)S8 hexagonal bipyramids. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded to one S(1), one S(4), three equivalent S(2), and three equivalent S(3) atoms to form distorted CeS8 hexagonal bipyramids that share  a cornercorner with one U(1)S8 hexagonal bipyramid, corners with two equivalent Ce(1)S8 hexagonal bipyramids, corners with two equivalent Ce(2)S8 hexagonal bipyramids, corners with two equivalent Ce(3)S8 hexagonal bipyramids, edges with two equivalent Ce(1)S8 hexagonal bipyramids, edges with two equivalent Ce(3)S8 hexagonal bipyramids,  a faceface with one U(1)S8 hexagonal bipyramid, faces with two equivalent Ce(1)S8 hexagonal bipyramids, faces with two equivalent Ce(2)S8 hexagonal bipyramids, and faces with two equivalent Ce(3)S8 hexagonal bipyramids. In the second Ce site, Ce(2) is bonded to two equivalent S(1), two equivalent S(2), two equivalent S(3), and two equivalent S(4) atoms to form distorted CeS8 hexagonal bipyramids that share corners with four equivalent Ce(1)S8 hexagonal bipyramids, corners with four equivalent Ce(3)S8 hexagonal bipyramids, edges with two equivalent U(1)S8 hexagonal bipyramids, faces with four equivalent Ce(1)S8 hexagonal bipyramids, and faces with four equivalent Ce(3)S8 hexagonal bipyramids. In the third Ce site, Ce(3) is bonded to one S(2), one S(3), three equivalent S(1), and three equivalent S(4) atoms to form distorted CeS8 hexagonal bipyramids that share  a cornercorner with one U(1)S8 hexagonal bipyramid, corners with two equivalent Ce(1)S8 hexagonal bipyramids, corners with two equivalent Ce(2)S8 hexagonal bipyramids, corners with two equivalent Ce(3)S8 hexagonal bipyramids, edges with two equivalent Ce(1)S8 hexagonal bipyramids, edges with two equivalent Ce(3)S8 hexagonal bipyramids,  a faceface with one U(1)S8 hexagonal bipyramid, faces with two equivalent Ce(1)S8 hexagonal bipyramids, faces with two equivalent Ce(2)S8 hexagonal bipyramids, and faces with two equivalent Ce(3)S8 hexagonal bipyramids. There are four inequivalent S sites. In the first S site, S(1) is bonded to one Ce(1), one Ce(2), and three equivalent Ce(3) atoms to form SCe5 square pyramids that share corners with four equivalent S(2)Ce5U octahedra, corners with four equivalent S(4)Ce5U octahedra, corners with four equivalent S(1)Ce5 square pyramids, corners with four equivalent S(3)Ce5 trigonal bipyramids,  an edgeedge with one S(4)Ce5U octahedra, edges with two equivalent S(2)Ce5U octahedra, edges with two equivalent S(3)Ce5 trigonal bipyramids, faces with two equivalent S(4)Ce5U octahedra, and  a faceface with one S(1)Ce5 square pyramid. The corner-sharing octahedral tilt angles range from 12-53°. In the second S site, S(2) is bonded to one U(1), one Ce(2), one Ce(3), and three equivalent Ce(1) atoms to form distorted SCe5U octahedra that share corners with three equivalent S(2)Ce5U octahedra, corners with four equivalent S(4)Ce5U octahedra, corners with four equivalent S(1)Ce5 square pyramids, corners with four equivalent S(3)Ce5 trigonal bipyramids,  an edgeedge with one S(4)Ce5U octahedra, edges with two equivalent S(2)Ce5U octahedra, edges with two equivalent S(1)Ce5 square pyramids,  an edgeedge with one S(3)Ce5 trigonal bipyramid,  a faceface with one S(2)Ce5U octahedra, faces with two equivalent S(4)Ce5U octahedra, and faces with two equivalent S(3)Ce5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 18-49°. In the third S site, S(3) is bonded to one Ce(2), one Ce(3), and three equivalent Ce(1) atoms to form SCe5 trigonal bipyramids that share corners with four equivalent S(2)Ce5U octahedra, corners with four equivalent S(4)Ce5U octahedra, corners with four equivalent S(1)Ce5 square pyramids,  a cornercorner with one S(3)Ce5 trigonal bipyramid,  an edgeedge with one S(2)Ce5U octahedra, edges with two equivalent S(4)Ce5U octahedra, edges with two equivalent S(1)Ce5 square pyramids, edges with three equivalent S(3)Ce5 trigonal bipyramids, and faces with two equivalent S(2)Ce5U octahedra. The corner-sharing octahedral tilt angles range from 20-53°. In the fourth S site, S(4) is bonded to one U(1), one Ce(1), one Ce(2), and three equivalent Ce(3) atoms to form distorted SCe5U octahedra that share corners with three equivalent S(4)Ce5U octahedra, corners with four equivalent S(2)Ce5U octahedra, corners with four equivalent S(1)Ce5 square pyramids, corners with four equivalent S(3)Ce5 trigonal bipyramids,  an edgeedge with one S(2)Ce5U octahedra, edges with two equivalent S(4)Ce5U octahedra,  an edgeedge with one S(1)Ce5 square pyramid, edges with two equivalent S(3)Ce5 trigonal bipyramids,  a faceface with one S(4)Ce5U octahedra, faces with two equivalent S(2)Ce5U octahedra, and faces with two equivalent S(1)Ce5 square pyramids. The corner-sharing octahedral tilt angles range from 16-49°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ce10US16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.488
_cell_length_b   8.488
_cell_length_c   8.467
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   609.951
_cell_formula_units_Z   1
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
  Ce  Ce0  1  0.875  0.755  0.862  1.0
  Ce  Ce1  1  0.245  0.875  0.138  1.0
  Ce  Ce2  1  0.500  0.000  0.753  1.0
  Ce  Ce3  1  0.125  0.245  0.862  1.0
  Ce  Ce4  1  0.755  0.125  0.138  1.0
  Ce  Ce5  1  0.366  0.246  0.380  1.0
  Ce  Ce6  1  0.754  0.366  0.620  1.0
  Ce  Ce7  1  0.000  0.500  0.247  1.0
  Ce  Ce8  1  0.246  0.634  0.620  1.0
  Ce  Ce9  1  0.634  0.754  0.380  1.0
  U  U10  1  0.500  0.500  0.000  1.0
  S  S11  1  0.333  0.921  0.456  1.0
  S  S12  1  0.569  0.820  0.052  1.0
  S  S13  1  0.921  0.819  0.187  1.0
  S  S14  1  0.431  0.180  0.052  1.0
  S  S15  1  0.079  0.181  0.187  1.0
  S  S16  1  0.181  0.921  0.813  1.0
  S  S17  1  0.667  0.079  0.456  1.0
  S  S18  1  0.819  0.079  0.813  1.0
  S  S19  1  0.820  0.431  0.948  1.0
  S  S20  1  0.079  0.333  0.544  1.0
  S  S21  1  0.426  0.328  0.705  1.0
  S  S22  1  0.921  0.667  0.544  1.0
  S  S23  1  0.574  0.672  0.705  1.0
  S  S24  1  0.180  0.569  0.948  1.0
  S  S25  1  0.672  0.426  0.295  1.0
  S  S26  1  0.328  0.574  0.295  1.0
[/CIF]
.
The compound described by UCe10S16 crystallizes in the tetragonal P-4 space group. U(1) is bonded to four equivalent S(2) and four equivalent S(4) atoms to form distorted US8 hexagonal bipyramids that share corners with four equivalent Ce(1)S8 hexagonal bipyramids, corners with four equivalent Ce(3)S8 hexagonal bipyramids, edges with four equivalent Ce(2)S8 hexagonal bipyramids, faces with four equivalent Ce(1)S8 hexagonal bipyramids, and faces with four equivalent Ce(3)S8 hexagonal bipyramids. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded to one S(1), one S(4), three equivalent S(2), and three equivalent S(3) atoms to form distorted CeS8 hexagonal bipyramids that share  a cornercorner with one U(1)S8 hexagonal bipyramid, corners with two equivalent Ce(1)S8 hexagonal bipyramids, corners with two equivalent Ce(2)S8 hexagonal bipyramids, corners with two equivalent Ce(3)S8 hexagonal bipyramids, edges with two equivalent Ce(1)S8 hexagonal bipyramids, edges with two equivalent Ce(3)S8 hexagonal bipyramids,  a faceface with one U(1)S8 hexagonal bipyramid, faces with two equivalent Ce(1)S8 hexagonal bipyramids, faces with two equivalent Ce(2)S8 hexagonal bipyramids, and faces with two equivalent Ce(3)S8 hexagonal bipyramids. In the second Ce site, Ce(2) is bonded to two equivalent S(1), two equivalent S(2), two equivalent S(3), and two equivalent S(4) atoms to form distorted CeS8 hexagonal bipyramids that share corners with four equivalent Ce(1)S8 hexagonal bipyramids, corners with four equivalent Ce(3)S8 hexagonal bipyramids, edges with two equivalent U(1)S8 hexagonal bipyramids, faces with four equivalent Ce(1)S8 hexagonal bipyramids, and faces with four equivalent Ce(3)S8 hexagonal bipyramids. In the third Ce site, Ce(3) is bonded to one S(2), one S(3), three equivalent S(1), and three equivalent S(4) atoms to form distorted CeS8 hexagonal bipyramids that share  a cornercorner with one U(1)S8 hexagonal bipyramid, corners with two equivalent Ce(1)S8 hexagonal bipyramids, corners with two equivalent Ce(2)S8 hexagonal bipyramids, corners with two equivalent Ce(3)S8 hexagonal bipyramids, edges with two equivalent Ce(1)S8 hexagonal bipyramids, edges with two equivalent Ce(3)S8 hexagonal bipyramids,  a faceface with one U(1)S8 hexagonal bipyramid, faces with two equivalent Ce(1)S8 hexagonal bipyramids, faces with two equivalent Ce(2)S8 hexagonal bipyramids, and faces with two equivalent Ce(3)S8 hexagonal bipyramids. There are four inequivalent S sites. In the first S site, S(1) is bonded to one Ce(1), one Ce(2), and three equivalent Ce(3) atoms to form SCe5 square pyramids that share corners with four equivalent S(2)Ce5U octahedra, corners with four equivalent S(4)Ce5U octahedra, corners with four equivalent S(1)Ce5 square pyramids, corners with four equivalent S(3)Ce5 trigonal bipyramids,  an edgeedge with one S(4)Ce5U octahedra, edges with two equivalent S(2)Ce5U octahedra, edges with two equivalent S(3)Ce5 trigonal bipyramids, faces with two equivalent S(4)Ce5U octahedra, and  a faceface with one S(1)Ce5 square pyramid. The corner-sharing octahedral tilt angles range from 12-53°. In the second S site, S(2) is bonded to one U(1), one Ce(2), one Ce(3), and three equivalent Ce(1) atoms to form distorted SCe5U octahedra that share corners with three equivalent S(2)Ce5U octahedra, corners with four equivalent S(4)Ce5U octahedra, corners with four equivalent S(1)Ce5 square pyramids, corners with four equivalent S(3)Ce5 trigonal bipyramids,  an edgeedge with one S(4)Ce5U octahedra, edges with two equivalent S(2)Ce5U octahedra, edges with two equivalent S(1)Ce5 square pyramids,  an edgeedge with one S(3)Ce5 trigonal bipyramid,  a faceface with one S(2)Ce5U octahedra, faces with two equivalent S(4)Ce5U octahedra, and faces with two equivalent S(3)Ce5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 18-49°. In the third S site, S(3) is bonded to one Ce(2), one Ce(3), and three equivalent Ce(1) atoms to form SCe5 trigonal bipyramids that share corners with four equivalent S(2)Ce5U octahedra, corners with four equivalent S(4)Ce5U octahedra, corners with four equivalent S(1)Ce5 square pyramids,  a cornercorner with one S(3)Ce5 trigonal bipyramid,  an edgeedge with one S(2)Ce5U octahedra, edges with two equivalent S(4)Ce5U octahedra, edges with two equivalent S(1)Ce5 square pyramids, edges with three equivalent S(3)Ce5 trigonal bipyramids, and faces with two equivalent S(2)Ce5U octahedra. The corner-sharing octahedral tilt angles range from 20-53°. In the fourth S site, S(4) is bonded to one U(1), one Ce(1), one Ce(2), and three equivalent Ce(3) atoms to form distorted SCe5U octahedra that share corners with three equivalent S(4)Ce5U octahedra, corners with four equivalent S(2)Ce5U octahedra, corners with four equivalent S(1)Ce5 square pyramids, corners with four equivalent S(3)Ce5 trigonal bipyramids,  an edgeedge with one S(2)Ce5U octahedra, edges with two equivalent S(4)Ce5U octahedra,  an edgeedge with one S(1)Ce5 square pyramid, edges with two equivalent S(3)Ce5 trigonal bipyramids,  a faceface with one S(4)Ce5U octahedra, faces with two equivalent S(2)Ce5U octahedra, and faces with two equivalent S(1)Ce5 square pyramids. The corner-sharing octahedral tilt angles range from 16-49°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ce10US16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.488
_cell_length_b   8.488
_cell_length_c   8.467
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   609.951
_cell_formula_units_Z   1
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
  Ce  Ce0  1  0.875  0.755  0.862  1.0
  Ce  Ce1  1  0.245  0.875  0.138  1.0
  Ce  Ce2  1  0.500  0.000  0.753  1.0
  Ce  Ce3  1  0.125  0.245  0.862  1.0
  Ce  Ce4  1  0.755  0.125  0.138  1.0
  Ce  Ce5  1  0.366  0.246  0.380  1.0
  Ce  Ce6  1  0.754  0.366  0.620  1.0
  Ce  Ce7  1  0.000  0.500  0.247  1.0
  Ce  Ce8  1  0.246  0.634  0.620  1.0
  Ce  Ce9  1  0.634  0.754  0.380  1.0
  U  U10  1  0.500  0.500  0.000  1.0
  S  S11  1  0.333  0.921  0.456  1.0
  S  S12  1  0.569  0.820  0.052  1.0
  S  S13  1  0.921  0.819  0.187  1.0
  S  S14  1  0.431  0.180  0.052  1.0
  S  S15  1  0.079  0.181  0.187  1.0
  S  S16  1  0.181  0.921  0.813  1.0
  S  S17  1  0.667  0.079  0.456  1.0
  S  S18  1  0.819  0.079  0.813  1.0
  S  S19  1  0.820  0.431  0.948  1.0
  S  S20  1  0.079  0.333  0.544  1.0
  S  S21  1  0.426  0.328  0.705  1.0
  S  S22  1  0.921  0.667  0.544  1.0
  S  S23  1  0.574  0.672  0.705  1.0
  S  S24  1  0.180  0.569  0.948  1.0
  S  S25  1  0.672  0.426  0.295  1.0
  S  S26  1  0.328  0.574  0.295  1.0
[/CIF]
.