The structure described by Sb8(PbS5)3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to one S(2), one S(3), one S(4), one S(7), and one S(8) atom to form distorted PbS5 square pyramids that share  a cornercorner with one Sb(1)S5 square pyramid and edges with two equivalent Sb(1)S5 square pyramids. In the second Pb site, Pb(2) is bonded in a rectangular see-saw-like geometry to two equivalent S(5) and two equivalent S(8) atoms. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one S(2), one S(4), one S(7), and two equivalent S(3) atoms to form distorted SbS5 square pyramids that share  a cornercorner with one Pb(1)S5 square pyramid,  an edgeedge with one Sb(1)S5 square pyramid, and edges with two equivalent Pb(1)S5 square pyramids. In the second Sb site, Sb(2) is bonded in a 3-coordinate geometry to one S(2), one S(3), one S(5), and one S(6) atom. In the third Sb site, Sb(3) is bonded in a 3-coordinate geometry to one S(3), one S(5), one S(7), and two equivalent S(4) atoms. In the fourth Sb site, Sb(4) is bonded in a 3-coordinate geometry to one S(1), one S(6), and one S(8) atom. There are eight inequivalent S sites. In the first S site, S(7) is bonded in a 3-coordinate geometry to one Pb(1), one Sb(1), and one Sb(3) atom. In the second S site, S(8) is bonded in a distorted trigonal non-coplanar geometry to one Pb(1), one Pb(2), and one Sb(4) atom. In the third S site, S(1) is bonded in a water-like geometry to two equivalent Sb(4) atoms. In the fourth S site, S(2) is bonded in a distorted trigonal non-coplanar geometry to one Pb(1), one Sb(1), and one Sb(2) atom. In the fifth S site, S(3) is bonded to one Pb(1), one Sb(2), one Sb(3), and two equivalent Sb(1) atoms to form distorted edge-sharing SSb4Pb square pyramids. In the sixth S site, S(4) is bonded in a 4-coordinate geometry to one Pb(1), one Sb(1), and two equivalent Sb(3) atoms. In the seventh S site, S(5) is bonded in a distorted trigonal non-coplanar geometry to one Pb(2), one Sb(2), and one Sb(3) atom. In the eighth S site, S(6) is bonded in a water-like geometry to one Sb(2) and one Sb(4) atom. is represented by the CIF card [CIF]
data_Sb8(PbS5)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.986
_cell_length_b   8.986
_cell_length_c   17.687
_cell_angle_alpha   85.949
_cell_angle_beta   85.949
_cell_angle_gamma   82.255
_symmetry_Int_Tables_number   1
_cell_volume   1409.084
_cell_formula_units_Z   2
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
  Sb  Sb0  1  0.141  0.035  0.077  1.0
  Sb  Sb1  1  0.965  0.859  0.423  1.0
  Sb  Sb2  1  0.859  0.965  0.923  1.0
  Sb  Sb3  1  0.035  0.141  0.577  1.0
  Sb  Sb4  1  0.394  0.884  0.437  1.0
  Sb  Sb5  1  0.116  0.606  0.063  1.0
  Sb  Sb6  1  0.606  0.116  0.563  1.0
  Sb  Sb7  1  0.884  0.394  0.937  1.0
  Sb  Sb8  1  0.505  0.236  0.002  1.0
  Sb  Sb9  1  0.764  0.495  0.498  1.0
  Sb  Sb10  1  0.495  0.764  0.998  1.0
  Sb  Sb11  1  0.236  0.505  0.502  1.0
  Sb  Sb12  1  0.589  0.223  0.342  1.0
  Sb  Sb13  1  0.777  0.411  0.158  1.0
  Sb  Sb14  1  0.411  0.777  0.658  1.0
  Sb  Sb15  1  0.223  0.589  0.842  1.0
  Pb  Pb16  1  0.737  0.881  0.164  1.0
  Pb  Pb17  1  0.119  0.263  0.336  1.0
  Pb  Pb18  1  0.263  0.119  0.836  1.0
  Pb  Pb19  1  0.881  0.737  0.664  1.0
  Pb  Pb20  1  0.378  0.622  0.250  1.0
  Pb  Pb21  1  0.622  0.378  0.750  1.0
  S  S22  1  0.816  0.184  0.250  1.0
  S  S23  1  0.184  0.816  0.750  1.0
  S  S24  1  0.198  0.936  0.341  1.0
  S  S25  1  0.064  0.802  0.159  1.0
  S  S26  1  0.802  0.064  0.659  1.0
  S  S27  1  0.936  0.198  0.841  1.0
  S  S28  1  0.833  0.105  0.037  1.0
  S  S29  1  0.895  0.167  0.463  1.0
  S  S30  1  0.167  0.895  0.963  1.0
  S  S31  1  0.105  0.833  0.537  1.0
  S  S32  1  0.427  0.945  0.099  1.0
  S  S33  1  0.055  0.573  0.401  1.0
  S  S34  1  0.573  0.055  0.901  1.0
  S  S35  1  0.945  0.427  0.599  1.0
  S  S36  1  0.447  0.610  0.414  1.0
  S  S37  1  0.390  0.553  0.086  1.0
  S  S38  1  0.553  0.390  0.586  1.0
  S  S39  1  0.610  0.447  0.914  1.0
  S  S40  1  0.590  0.948  0.337  1.0
  S  S41  1  0.052  0.410  0.163  1.0
  S  S42  1  0.410  0.052  0.663  1.0
  S  S43  1  0.948  0.590  0.837  1.0
  S  S44  1  0.241  0.291  0.964  1.0
  S  S45  1  0.709  0.759  0.536  1.0
  S  S46  1  0.759  0.709  0.036  1.0
  S  S47  1  0.291  0.241  0.464  1.0
  S  S48  1  0.308  0.404  0.749  1.0
  S  S49  1  0.596  0.692  0.751  1.0
  S  S50  1  0.692  0.596  0.251  1.0
  S  S51  1  0.404  0.308  0.249  1.0
[/CIF]
.
The structure described by Sb8(PbS5)3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to one S(2), one S(3), one S(4), one S(7), and one S(8) atom to form distorted PbS5 square pyramids that share  a cornercorner with one Sb(1)S5 square pyramid and edges with two equivalent Sb(1)S5 square pyramids. In the second Pb site, Pb(2) is bonded in a rectangular see-saw-like geometry to two equivalent S(5) and two equivalent S(8) atoms. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one S(2), one S(4), one S(7), and two equivalent S(3) atoms to form distorted SbS5 square pyramids that share  a cornercorner with one Pb(1)S5 square pyramid,  an edgeedge with one Sb(1)S5 square pyramid, and edges with two equivalent Pb(1)S5 square pyramids. In the second Sb site, Sb(2) is bonded in a 3-coordinate geometry to one S(2), one S(3), one S(5), and one S(6) atom. In the third Sb site, Sb(3) is bonded in a 3-coordinate geometry to one S(3), one S(5), one S(7), and two equivalent S(4) atoms. In the fourth Sb site, Sb(4) is bonded in a 3-coordinate geometry to one S(1), one S(6), and one S(8) atom. There are eight inequivalent S sites. In the first S site, S(7) is bonded in a 3-coordinate geometry to one Pb(1), one Sb(1), and one Sb(3) atom. In the second S site, S(8) is bonded in a distorted trigonal non-coplanar geometry to one Pb(1), one Pb(2), and one Sb(4) atom. In the third S site, S(1) is bonded in a water-like geometry to two equivalent Sb(4) atoms. In the fourth S site, S(2) is bonded in a distorted trigonal non-coplanar geometry to one Pb(1), one Sb(1), and one Sb(2) atom. In the fifth S site, S(3) is bonded to one Pb(1), one Sb(2), one Sb(3), and two equivalent Sb(1) atoms to form distorted edge-sharing SSb4Pb square pyramids. In the sixth S site, S(4) is bonded in a 4-coordinate geometry to one Pb(1), one Sb(1), and two equivalent Sb(3) atoms. In the seventh S site, S(5) is bonded in a distorted trigonal non-coplanar geometry to one Pb(2), one Sb(2), and one Sb(3) atom. In the eighth S site, S(6) is bonded in a water-like geometry to one Sb(2) and one Sb(4) atom. is represented by the CIF card [CIF]
data_Sb8(PbS5)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.986
_cell_length_b   8.986
_cell_length_c   17.687
_cell_angle_alpha   85.949
_cell_angle_beta   85.949
_cell_angle_gamma   82.255
_symmetry_Int_Tables_number   1
_cell_volume   1409.084
_cell_formula_units_Z   2
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
  Sb  Sb0  1  0.141  0.035  0.077  1.0
  Sb  Sb1  1  0.965  0.859  0.423  1.0
  Sb  Sb2  1  0.859  0.965  0.923  1.0
  Sb  Sb3  1  0.035  0.141  0.577  1.0
  Sb  Sb4  1  0.394  0.884  0.437  1.0
  Sb  Sb5  1  0.116  0.606  0.063  1.0
  Sb  Sb6  1  0.606  0.116  0.563  1.0
  Sb  Sb7  1  0.884  0.394  0.937  1.0
  Sb  Sb8  1  0.505  0.236  0.002  1.0
  Sb  Sb9  1  0.764  0.495  0.498  1.0
  Sb  Sb10  1  0.495  0.764  0.998  1.0
  Sb  Sb11  1  0.236  0.505  0.502  1.0
  Sb  Sb12  1  0.589  0.223  0.342  1.0
  Sb  Sb13  1  0.777  0.411  0.158  1.0
  Sb  Sb14  1  0.411  0.777  0.658  1.0
  Sb  Sb15  1  0.223  0.589  0.842  1.0
  Pb  Pb16  1  0.737  0.881  0.164  1.0
  Pb  Pb17  1  0.119  0.263  0.336  1.0
  Pb  Pb18  1  0.263  0.119  0.836  1.0
  Pb  Pb19  1  0.881  0.737  0.664  1.0
  Pb  Pb20  1  0.378  0.622  0.250  1.0
  Pb  Pb21  1  0.622  0.378  0.750  1.0
  S  S22  1  0.816  0.184  0.250  1.0
  S  S23  1  0.184  0.816  0.750  1.0
  S  S24  1  0.198  0.936  0.341  1.0
  S  S25  1  0.064  0.802  0.159  1.0
  S  S26  1  0.802  0.064  0.659  1.0
  S  S27  1  0.936  0.198  0.841  1.0
  S  S28  1  0.833  0.105  0.037  1.0
  S  S29  1  0.895  0.167  0.463  1.0
  S  S30  1  0.167  0.895  0.963  1.0
  S  S31  1  0.105  0.833  0.537  1.0
  S  S32  1  0.427  0.945  0.099  1.0
  S  S33  1  0.055  0.573  0.401  1.0
  S  S34  1  0.573  0.055  0.901  1.0
  S  S35  1  0.945  0.427  0.599  1.0
  S  S36  1  0.447  0.610  0.414  1.0
  S  S37  1  0.390  0.553  0.086  1.0
  S  S38  1  0.553  0.390  0.586  1.0
  S  S39  1  0.610  0.447  0.914  1.0
  S  S40  1  0.590  0.948  0.337  1.0
  S  S41  1  0.052  0.410  0.163  1.0
  S  S42  1  0.410  0.052  0.663  1.0
  S  S43  1  0.948  0.590  0.837  1.0
  S  S44  1  0.241  0.291  0.964  1.0
  S  S45  1  0.709  0.759  0.536  1.0
  S  S46  1  0.759  0.709  0.036  1.0
  S  S47  1  0.291  0.241  0.464  1.0
  S  S48  1  0.308  0.404  0.749  1.0
  S  S49  1  0.596  0.692  0.751  1.0
  S  S50  1  0.692  0.596  0.251  1.0
  S  S51  1  0.404  0.308  0.249  1.0
[/CIF]
.