The structure described by Al2PbS4 crystallizes in the orthorhombic Cccm space group. Al(1) is bonded to two equivalent S(1) and two equivalent S(2) atoms to form edge-sharing AlS4 tetrahedra. Pb(1) is bonded in a 8-coordinate geometry to four equivalent S(1) and four equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a distorted L-shaped geometry to two equivalent Al(1) and two equivalent Pb(1) atoms. In the second S site, S(2) is bonded in a distorted L-shaped geometry to two equivalent Al(1) and two equivalent Pb(1) atoms. is represented by the CIF file [CIF]
data_Al2PbS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.022
_cell_length_b   6.022
_cell_length_c   10.523
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.977
_symmetry_Int_Tables_number   1
_cell_volume   327.214
_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
  Al  Al0  1  0.762  0.240  0.500  1.0
  Al  Al1  1  0.238  0.760  0.500  1.0
  Al  Al2  1  0.760  0.238  0.000  1.0
  Al  Al3  1  0.240  0.762  0.000  1.0
  Pb  Pb4  1  0.500  0.500  0.750  1.0
  Pb  Pb5  1  0.500  0.500  0.250  1.0
  S  S6  1  0.355  0.179  0.500  1.0
  S  S7  1  0.645  0.821  0.500  1.0
  S  S8  1  0.821  0.645  0.000  1.0
  S  S9  1  0.179  0.355  0.000  1.0
  S  S10  1  0.500  0.000  0.838  1.0
  S  S11  1  0.000  0.500  0.662  1.0
  S  S12  1  0.500  0.000  0.162  1.0
  S  S13  1  0.000  0.500  0.338  1.0
[/CIF]
.
The structure described by Al2PbS4 crystallizes in the orthorhombic Cccm space group. Al(1) is bonded to two equivalent S(1) and two equivalent S(2) atoms to form edge-sharing AlS4 tetrahedra. Pb(1) is bonded in a 8-coordinate geometry to four equivalent S(1) and four equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a distorted L-shaped geometry to two equivalent Al(1) and two equivalent Pb(1) atoms. In the second S site, S(2) is bonded in a distorted L-shaped geometry to two equivalent Al(1) and two equivalent Pb(1) atoms. is represented by the CIF file [CIF]
data_Al2PbS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.022
_cell_length_b   6.022
_cell_length_c   10.523
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.977
_symmetry_Int_Tables_number   1
_cell_volume   327.214
_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
  Al  Al0  1  0.762  0.240  0.500  1.0
  Al  Al1  1  0.238  0.760  0.500  1.0
  Al  Al2  1  0.760  0.238  0.000  1.0
  Al  Al3  1  0.240  0.762  0.000  1.0
  Pb  Pb4  1  0.500  0.500  0.750  1.0
  Pb  Pb5  1  0.500  0.500  0.250  1.0
  S  S6  1  0.355  0.179  0.500  1.0
  S  S7  1  0.645  0.821  0.500  1.0
  S  S8  1  0.821  0.645  0.000  1.0
  S  S9  1  0.179  0.355  0.000  1.0
  S  S10  1  0.500  0.000  0.838  1.0
  S  S11  1  0.000  0.500  0.662  1.0
  S  S12  1  0.500  0.000  0.162  1.0
  S  S13  1  0.000  0.500  0.338  1.0
[/CIF]
.