The structure described by Sm2PbS4 crystallizes in the tetragonal I-42d space group. Sm(1) is bonded to eight equivalent S(1) atoms to form a mixture of distorted corner, edge, and face-sharing SmS8 hexagonal bipyramids. Pb(1) is bonded in a 8-coordinate geometry to eight equivalent S(1) atoms. S(1) is bonded in a 6-coordinate geometry to four equivalent Sm(1) and two equivalent Pb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm2PbS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.468
_cell_length_b   7.468
_cell_length_c   7.468
_cell_angle_alpha   109.402
_cell_angle_beta   109.402
_cell_angle_gamma   109.609
_symmetry_Int_Tables_number   1
_cell_volume   320.584
_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
  Sm  Sm0  1  0.494  0.875  0.119  1.0
  Sm  Sm1  1  0.125  0.244  0.619  1.0
  Sm  Sm2  1  0.756  0.375  0.881  1.0
  Sm  Sm3  1  0.625  0.506  0.381  1.0
  Pb  Pb4  1  0.250  0.750  0.500  1.0
  Pb  Pb5  1  0.000  0.000  0.000  1.0
  S  S6  1  0.014  0.610  0.747  1.0
  S  S7  1  0.390  0.137  0.404  1.0
  S  S8  1  0.860  0.764  0.247  1.0
  S  S9  1  0.387  0.140  0.904  1.0
  S  S10  1  0.236  0.483  0.096  1.0
  S  S11  1  0.733  0.986  0.596  1.0
  S  S12  1  0.863  0.267  0.253  1.0
  S  S13  1  0.517  0.613  0.753  1.0
[/CIF]
.
The structure described by Sm2PbS4 crystallizes in the tetragonal I-42d space group. Sm(1) is bonded to eight equivalent S(1) atoms to form a mixture of distorted corner, edge, and face-sharing SmS8 hexagonal bipyramids. Pb(1) is bonded in a 8-coordinate geometry to eight equivalent S(1) atoms. S(1) is bonded in a 6-coordinate geometry to four equivalent Sm(1) and two equivalent Pb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm2PbS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.468
_cell_length_b   7.468
_cell_length_c   7.468
_cell_angle_alpha   109.402
_cell_angle_beta   109.402
_cell_angle_gamma   109.609
_symmetry_Int_Tables_number   1
_cell_volume   320.584
_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
  Sm  Sm0  1  0.494  0.875  0.119  1.0
  Sm  Sm1  1  0.125  0.244  0.619  1.0
  Sm  Sm2  1  0.756  0.375  0.881  1.0
  Sm  Sm3  1  0.625  0.506  0.381  1.0
  Pb  Pb4  1  0.250  0.750  0.500  1.0
  Pb  Pb5  1  0.000  0.000  0.000  1.0
  S  S6  1  0.014  0.610  0.747  1.0
  S  S7  1  0.390  0.137  0.404  1.0
  S  S8  1  0.860  0.764  0.247  1.0
  S  S9  1  0.387  0.140  0.904  1.0
  S  S10  1  0.236  0.483  0.096  1.0
  S  S11  1  0.733  0.986  0.596  1.0
  S  S12  1  0.863  0.267  0.253  1.0
  S  S13  1  0.517  0.613  0.753  1.0
[/CIF]
.