The structure described by K2La2Sb2S9 crystallizes in the orthorhombic Pbam space group. K(1) is bonded to one S(3), two equivalent S(1), two equivalent S(2), and two equivalent S(4) atoms to form a mixture of distorted face and corner-sharing KS7 pentagonal bipyramids. La(1) is bonded in a 8-coordinate geometry to two equivalent S(1), two equivalent S(2), two equivalent S(4), and two equivalent S(5) atoms. Sb(1) is bonded in a 5-coordinate geometry to one S(1), one S(2), two equivalent S(3), and two equivalent S(5) atoms. There are five inequivalent S sites. In the first S site, S(1) is bonded to two equivalent K(1), two equivalent La(1), and one Sb(1) atom to form SK2La2Sb square pyramids that share edges with two equivalent S(3)K2Sb4 octahedra and edges with two equivalent S(1)K2La2Sb square pyramids. In the second S site, S(2) is bonded in a 6-coordinate geometry to two equivalent K(1), two equivalent La(1), one Sb(1), and one S(4) atom. In the third S site, S(3) is bonded to two equivalent K(1) and four equivalent Sb(1) atoms to form SK2Sb4 octahedra that share edges with two equivalent S(3)K2Sb4 octahedra and edges with four equivalent S(1)K2La2Sb square pyramids. In the fourth S site, S(4) is bonded in a 5-coordinate geometry to two equivalent K(1), two equivalent La(1), and one S(2) atom. In the fifth S site, S(5) is bonded in a rectangular see-saw-like geometry to two equivalent La(1) and two equivalent Sb(1) atoms. is represented by the CIF card [CIF]
data_K2La2Sb2S9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.136
_cell_length_b   11.328
_cell_length_c   17.080
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   800.167
_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
  K  K0  1  0.500  0.718  0.057  1.0
  K  K1  1  0.500  0.282  0.943  1.0
  K  K2  1  0.500  0.218  0.443  1.0
  K  K3  1  0.500  0.782  0.557  1.0
  La  La4  1  0.500  0.884  0.295  1.0
  La  La5  1  0.500  0.116  0.705  1.0
  La  La6  1  0.500  0.384  0.205  1.0
  La  La7  1  0.500  0.616  0.795  1.0
  Sb  Sb8  1  0.000  0.552  0.384  1.0
  Sb  Sb9  1  0.000  0.448  0.616  1.0
  Sb  Sb10  1  0.000  0.052  0.116  1.0
  Sb  Sb11  1  0.000  0.948  0.884  1.0
  S  S12  1  0.000  0.850  0.172  1.0
  S  S13  1  0.000  0.150  0.828  1.0
  S  S14  1  0.000  0.350  0.328  1.0
  S  S15  1  0.000  0.650  0.672  1.0
  S  S16  1  0.000  0.829  0.412  1.0
  S  S17  1  0.000  0.171  0.588  1.0
  S  S18  1  0.000  0.329  0.088  1.0
  S  S19  1  0.000  0.671  0.912  1.0
  S  S20  1  0.500  0.500  0.500  1.0
  S  S21  1  0.500  0.000  0.000  1.0
  S  S22  1  0.000  0.508  0.121  1.0
  S  S23  1  0.000  0.492  0.879  1.0
  S  S24  1  0.000  0.008  0.379  1.0
  S  S25  1  0.000  0.992  0.621  1.0
  S  S26  1  0.500  0.614  0.288  1.0
  S  S27  1  0.500  0.386  0.712  1.0
  S  S28  1  0.500  0.114  0.212  1.0
  S  S29  1  0.500  0.886  0.788  1.0
[/CIF]
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The structure described by K2La2Sb2S9 crystallizes in the orthorhombic Pbam space group. K(1) is bonded to one S(3), two equivalent S(1), two equivalent S(2), and two equivalent S(4) atoms to form a mixture of distorted face and corner-sharing KS7 pentagonal bipyramids. La(1) is bonded in a 8-coordinate geometry to two equivalent S(1), two equivalent S(2), two equivalent S(4), and two equivalent S(5) atoms. Sb(1) is bonded in a 5-coordinate geometry to one S(1), one S(2), two equivalent S(3), and two equivalent S(5) atoms. There are five inequivalent S sites. In the first S site, S(1) is bonded to two equivalent K(1), two equivalent La(1), and one Sb(1) atom to form SK2La2Sb square pyramids that share edges with two equivalent S(3)K2Sb4 octahedra and edges with two equivalent S(1)K2La2Sb square pyramids. In the second S site, S(2) is bonded in a 6-coordinate geometry to two equivalent K(1), two equivalent La(1), one Sb(1), and one S(4) atom. In the third S site, S(3) is bonded to two equivalent K(1) and four equivalent Sb(1) atoms to form SK2Sb4 octahedra that share edges with two equivalent S(3)K2Sb4 octahedra and edges with four equivalent S(1)K2La2Sb square pyramids. In the fourth S site, S(4) is bonded in a 5-coordinate geometry to two equivalent K(1), two equivalent La(1), and one S(2) atom. In the fifth S site, S(5) is bonded in a rectangular see-saw-like geometry to two equivalent La(1) and two equivalent Sb(1) atoms. is represented by the CIF card [CIF]
data_K2La2Sb2S9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.136
_cell_length_b   11.328
_cell_length_c   17.080
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   800.167
_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
  K  K0  1  0.500  0.718  0.057  1.0
  K  K1  1  0.500  0.282  0.943  1.0
  K  K2  1  0.500  0.218  0.443  1.0
  K  K3  1  0.500  0.782  0.557  1.0
  La  La4  1  0.500  0.884  0.295  1.0
  La  La5  1  0.500  0.116  0.705  1.0
  La  La6  1  0.500  0.384  0.205  1.0
  La  La7  1  0.500  0.616  0.795  1.0
  Sb  Sb8  1  0.000  0.552  0.384  1.0
  Sb  Sb9  1  0.000  0.448  0.616  1.0
  Sb  Sb10  1  0.000  0.052  0.116  1.0
  Sb  Sb11  1  0.000  0.948  0.884  1.0
  S  S12  1  0.000  0.850  0.172  1.0
  S  S13  1  0.000  0.150  0.828  1.0
  S  S14  1  0.000  0.350  0.328  1.0
  S  S15  1  0.000  0.650  0.672  1.0
  S  S16  1  0.000  0.829  0.412  1.0
  S  S17  1  0.000  0.171  0.588  1.0
  S  S18  1  0.000  0.329  0.088  1.0
  S  S19  1  0.000  0.671  0.912  1.0
  S  S20  1  0.500  0.500  0.500  1.0
  S  S21  1  0.500  0.000  0.000  1.0
  S  S22  1  0.000  0.508  0.121  1.0
  S  S23  1  0.000  0.492  0.879  1.0
  S  S24  1  0.000  0.008  0.379  1.0
  S  S25  1  0.000  0.992  0.621  1.0
  S  S26  1  0.500  0.614  0.288  1.0
  S  S27  1  0.500  0.386  0.712  1.0
  S  S28  1  0.500  0.114  0.212  1.0
  S  S29  1  0.500  0.886  0.788  1.0
[/CIF]
.