The compound described by U8CoS17 crystallizes in the monoclinic C2/m space group. There are three inequivalent U sites. In the first U site, U(1) is bonded in a 8-coordinate geometry to one S(2), one S(3), one S(4), one S(5), one S(6), one S(7), and two equivalent S(1) atoms. In the second U site, U(2) is bonded in a 8-coordinate geometry to one S(3), one S(4), one S(5), one S(7), and four equivalent S(1) atoms. In the third U site, U(3) is bonded in a 8-coordinate geometry to one S(4), one S(5), two equivalent S(6), and four equivalent S(2) atoms. Co(1) is bonded in an octahedral geometry to two equivalent S(3) and four equivalent S(2) atoms. There are seven inequivalent S sites. In the first S site, S(6) is bonded to two equivalent U(1) and two equivalent U(3) atoms to form distorted SU4 trigonal pyramids that share corners with two equivalent S(7)U6 octahedra, corners with six equivalent S(2)U3Co tetrahedra, corners with two equivalent S(3)U3Co trigonal pyramids, edges with two equivalent S(2)U3Co tetrahedra, and  an edgeedge with one S(6)U4 trigonal pyramid. The corner-sharing octahedral tilt angles are 37°. In the second S site, S(7) is bonded to two equivalent U(2) and four equivalent U(1) atoms to form SU6 octahedra that share corners with four equivalent S(2)U3Co tetrahedra, corners with four equivalent S(6)U4 trigonal pyramids, and faces with two equivalent S(3)U3Co trigonal pyramids. In the third S site, S(1) is bonded in a rectangular see-saw-like geometry to two equivalent U(1) and two equivalent U(2) atoms. In the fourth S site, S(2) is bonded to one U(1), two equivalent U(3), and one Co(1) atom to form distorted SU3Co tetrahedra that share  a cornercorner with one S(7)U6 octahedra, corners with five equivalent S(2)U3Co tetrahedra,  a cornercorner with one S(3)U3Co trigonal pyramid, corners with three equivalent S(6)U4 trigonal pyramids, edges with two equivalent S(2)U3Co tetrahedra,  an edgeedge with one S(3)U3Co trigonal pyramid, and  an edgeedge with one S(6)U4 trigonal pyramid. The corner-sharing octahedral tilt angles are 53°. In the fifth S site, S(3) is bonded to one U(2), two equivalent U(1), and one Co(1) atom to form distorted SU3Co trigonal pyramids that share corners with two equivalent S(2)U3Co tetrahedra,  a cornercorner with one S(3)U3Co trigonal pyramid, corners with two equivalent S(6)U4 trigonal pyramids, edges with two equivalent S(2)U3Co tetrahedra, and  a faceface with one S(7)U6 octahedra. In the sixth S site, S(4) is bonded in a rectangular see-saw-like geometry to one U(2), one U(3), and two equivalent U(1) atoms. In the seventh S site, S(5) is bonded in a rectangular see-saw-like geometry to one U(2), one U(3), and two equivalent U(1) atoms. is represented by the CIF file [CIF]
data_U8CoS17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.899
_cell_length_b   7.899
_cell_length_c   10.313
_cell_angle_alpha   80.377
_cell_angle_beta   80.377
_cell_angle_gamma   64.796
_symmetry_Int_Tables_number   1
_cell_volume   570.757
_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
  U  U0  1  0.186  0.698  0.709  1.0
  U  U1  1  0.698  0.186  0.709  1.0
  U  U2  1  0.814  0.302  0.291  1.0
  U  U3  1  0.302  0.814  0.291  1.0
  U  U4  1  0.205  0.205  0.545  1.0
  U  U5  1  0.795  0.795  0.455  1.0
  U  U6  1  0.684  0.684  0.981  1.0
  U  U7  1  0.316  0.316  0.019  1.0
  Co  Co8  1  0.000  0.000  0.000  1.0
  S  S9  1  0.825  0.430  0.534  1.0
  S  S10  1  0.430  0.825  0.534  1.0
  S  S11  1  0.175  0.570  0.466  1.0
  S  S12  1  0.570  0.175  0.466  1.0
  S  S13  1  0.057  0.677  0.975  1.0
  S  S14  1  0.677  0.057  0.975  1.0
  S  S15  1  0.943  0.323  0.025  1.0
  S  S16  1  0.323  0.943  0.025  1.0
  S  S17  1  0.053  0.053  0.780  1.0
  S  S18  1  0.947  0.947  0.220  1.0
  S  S19  1  0.208  0.208  0.279  1.0
  S  S20  1  0.792  0.792  0.721  1.0
  S  S21  1  0.302  0.302  0.755  1.0
  S  S22  1  0.698  0.698  0.245  1.0
  S  S23  1  0.519  0.519  0.831  1.0
  S  S24  1  0.481  0.481  0.169  1.0
  S  S25  1  0.000  0.000  0.500  1.0
[/CIF]
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The compound described by U8CoS17 crystallizes in the monoclinic C2/m space group. There are three inequivalent U sites. In the first U site, U(1) is bonded in a 8-coordinate geometry to one S(2), one S(3), one S(4), one S(5), one S(6), one S(7), and two equivalent S(1) atoms. In the second U site, U(2) is bonded in a 8-coordinate geometry to one S(3), one S(4), one S(5), one S(7), and four equivalent S(1) atoms. In the third U site, U(3) is bonded in a 8-coordinate geometry to one S(4), one S(5), two equivalent S(6), and four equivalent S(2) atoms. Co(1) is bonded in an octahedral geometry to two equivalent S(3) and four equivalent S(2) atoms. There are seven inequivalent S sites. In the first S site, S(6) is bonded to two equivalent U(1) and two equivalent U(3) atoms to form distorted SU4 trigonal pyramids that share corners with two equivalent S(7)U6 octahedra, corners with six equivalent S(2)U3Co tetrahedra, corners with two equivalent S(3)U3Co trigonal pyramids, edges with two equivalent S(2)U3Co tetrahedra, and  an edgeedge with one S(6)U4 trigonal pyramid. The corner-sharing octahedral tilt angles are 37°. In the second S site, S(7) is bonded to two equivalent U(2) and four equivalent U(1) atoms to form SU6 octahedra that share corners with four equivalent S(2)U3Co tetrahedra, corners with four equivalent S(6)U4 trigonal pyramids, and faces with two equivalent S(3)U3Co trigonal pyramids. In the third S site, S(1) is bonded in a rectangular see-saw-like geometry to two equivalent U(1) and two equivalent U(2) atoms. In the fourth S site, S(2) is bonded to one U(1), two equivalent U(3), and one Co(1) atom to form distorted SU3Co tetrahedra that share  a cornercorner with one S(7)U6 octahedra, corners with five equivalent S(2)U3Co tetrahedra,  a cornercorner with one S(3)U3Co trigonal pyramid, corners with three equivalent S(6)U4 trigonal pyramids, edges with two equivalent S(2)U3Co tetrahedra,  an edgeedge with one S(3)U3Co trigonal pyramid, and  an edgeedge with one S(6)U4 trigonal pyramid. The corner-sharing octahedral tilt angles are 53°. In the fifth S site, S(3) is bonded to one U(2), two equivalent U(1), and one Co(1) atom to form distorted SU3Co trigonal pyramids that share corners with two equivalent S(2)U3Co tetrahedra,  a cornercorner with one S(3)U3Co trigonal pyramid, corners with two equivalent S(6)U4 trigonal pyramids, edges with two equivalent S(2)U3Co tetrahedra, and  a faceface with one S(7)U6 octahedra. In the sixth S site, S(4) is bonded in a rectangular see-saw-like geometry to one U(2), one U(3), and two equivalent U(1) atoms. In the seventh S site, S(5) is bonded in a rectangular see-saw-like geometry to one U(2), one U(3), and two equivalent U(1) atoms. is represented by the CIF file [CIF]
data_U8CoS17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.899
_cell_length_b   7.899
_cell_length_c   10.313
_cell_angle_alpha   80.377
_cell_angle_beta   80.377
_cell_angle_gamma   64.796
_symmetry_Int_Tables_number   1
_cell_volume   570.757
_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
  U  U0  1  0.186  0.698  0.709  1.0
  U  U1  1  0.698  0.186  0.709  1.0
  U  U2  1  0.814  0.302  0.291  1.0
  U  U3  1  0.302  0.814  0.291  1.0
  U  U4  1  0.205  0.205  0.545  1.0
  U  U5  1  0.795  0.795  0.455  1.0
  U  U6  1  0.684  0.684  0.981  1.0
  U  U7  1  0.316  0.316  0.019  1.0
  Co  Co8  1  0.000  0.000  0.000  1.0
  S  S9  1  0.825  0.430  0.534  1.0
  S  S10  1  0.430  0.825  0.534  1.0
  S  S11  1  0.175  0.570  0.466  1.0
  S  S12  1  0.570  0.175  0.466  1.0
  S  S13  1  0.057  0.677  0.975  1.0
  S  S14  1  0.677  0.057  0.975  1.0
  S  S15  1  0.943  0.323  0.025  1.0
  S  S16  1  0.323  0.943  0.025  1.0
  S  S17  1  0.053  0.053  0.780  1.0
  S  S18  1  0.947  0.947  0.220  1.0
  S  S19  1  0.208  0.208  0.279  1.0
  S  S20  1  0.792  0.792  0.721  1.0
  S  S21  1  0.302  0.302  0.755  1.0
  S  S22  1  0.698  0.698  0.245  1.0
  S  S23  1  0.519  0.519  0.831  1.0
  S  S24  1  0.481  0.481  0.169  1.0
  S  S25  1  0.000  0.000  0.500  1.0
[/CIF]
.