The structure described by K2SnS3 crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to one S(3), two equivalent S(1), and three equivalent S(2) atoms to form distorted KS6 octahedra that share corners with two equivalent K(1)S6 octahedra, corners with five equivalent Sn(1)S4 tetrahedra, edges with three equivalent K(1)S6 octahedra, and  an edgeedge with one Sn(1)S4 tetrahedra. The corner-sharing octahedral tilt angles are 16°. In the second K site, K(2) is bonded in a 6-coordinate geometry to one S(3), two equivalent S(2), and three equivalent S(1) atoms. Sn(1) is bonded to one S(1), one S(2), and two equivalent S(3) atoms to form distorted SnS4 tetrahedra that share corners with five equivalent K(1)S6 octahedra,  an edgeedge with one K(1)S6 octahedra, and  an edgeedge with one Sn(1)S4 tetrahedra. The corner-sharing octahedral tilt angles range from 11-88°. There are three inequivalent S sites. In the first S site, S(1) is bonded to two equivalent K(1), three equivalent K(2), and one Sn(1) atom to form a mixture of distorted edge and corner-sharing SK5Sn octahedra. The corner-sharing octahedral tilt angles range from 5-64°. In the second S site, S(2) is bonded to two equivalent K(2), three equivalent K(1), and one Sn(1) atom to form a mixture of distorted edge and corner-sharing SK5Sn octahedra. The corner-sharing octahedral tilt angles range from 5-64°. In the third S site, S(3) is bonded in a distorted rectangular see-saw-like geometry to one K(1), one K(2), and two equivalent Sn(1) atoms. is represented by the CIF file [CIF]
data_K2SnS3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.772
_cell_length_b   7.485
_cell_length_c   8.260
_cell_angle_alpha   75.602
_cell_angle_beta   73.062
_cell_angle_gamma   66.945
_symmetry_Int_Tables_number   1
_cell_volume   364.216
_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  0.149  0.461  0.193  1.0
  K  K1  1  0.851  0.539  0.807  1.0
  K  K2  1  0.589  0.208  0.625  1.0
  K  K3  1  0.411  0.792  0.375  1.0
  Sn  Sn4  1  0.854  0.065  0.194  1.0
  Sn  Sn5  1  0.146  0.935  0.806  1.0
  S  S6  1  0.134  0.182  0.567  1.0
  S  S7  1  0.866  0.818  0.433  1.0
  S  S8  1  0.655  0.396  0.220  1.0
  S  S9  1  0.345  0.604  0.780  1.0
  S  S10  1  0.227  0.047  0.032  1.0
  S  S11  1  0.773  0.953  0.968  1.0
[/CIF]
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The structure described by K2SnS3 crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to one S(3), two equivalent S(1), and three equivalent S(2) atoms to form distorted KS6 octahedra that share corners with two equivalent K(1)S6 octahedra, corners with five equivalent Sn(1)S4 tetrahedra, edges with three equivalent K(1)S6 octahedra, and  an edgeedge with one Sn(1)S4 tetrahedra. The corner-sharing octahedral tilt angles are 16°. In the second K site, K(2) is bonded in a 6-coordinate geometry to one S(3), two equivalent S(2), and three equivalent S(1) atoms. Sn(1) is bonded to one S(1), one S(2), and two equivalent S(3) atoms to form distorted SnS4 tetrahedra that share corners with five equivalent K(1)S6 octahedra,  an edgeedge with one K(1)S6 octahedra, and  an edgeedge with one Sn(1)S4 tetrahedra. The corner-sharing octahedral tilt angles range from 11-88°. There are three inequivalent S sites. In the first S site, S(1) is bonded to two equivalent K(1), three equivalent K(2), and one Sn(1) atom to form a mixture of distorted edge and corner-sharing SK5Sn octahedra. The corner-sharing octahedral tilt angles range from 5-64°. In the second S site, S(2) is bonded to two equivalent K(2), three equivalent K(1), and one Sn(1) atom to form a mixture of distorted edge and corner-sharing SK5Sn octahedra. The corner-sharing octahedral tilt angles range from 5-64°. In the third S site, S(3) is bonded in a distorted rectangular see-saw-like geometry to one K(1), one K(2), and two equivalent Sn(1) atoms. is represented by the CIF file [CIF]
data_K2SnS3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.772
_cell_length_b   7.485
_cell_length_c   8.260
_cell_angle_alpha   75.602
_cell_angle_beta   73.062
_cell_angle_gamma   66.945
_symmetry_Int_Tables_number   1
_cell_volume   364.216
_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  0.149  0.461  0.193  1.0
  K  K1  1  0.851  0.539  0.807  1.0
  K  K2  1  0.589  0.208  0.625  1.0
  K  K3  1  0.411  0.792  0.375  1.0
  Sn  Sn4  1  0.854  0.065  0.194  1.0
  Sn  Sn5  1  0.146  0.935  0.806  1.0
  S  S6  1  0.134  0.182  0.567  1.0
  S  S7  1  0.866  0.818  0.433  1.0
  S  S8  1  0.655  0.396  0.220  1.0
  S  S9  1  0.345  0.604  0.780  1.0
  S  S10  1  0.227  0.047  0.032  1.0
  S  S11  1  0.773  0.953  0.968  1.0
[/CIF]
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