The crystal structure described by AlPb3 crystallizes in the tetragonal I4/mmm space group. Al(1) is bonded in a 12-coordinate geometry to four equivalent Pb(2) atoms. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 12-coordinate geometry to four equivalent Pb(2) atoms. In the second Pb site, Pb(2) is bonded to four equivalent Al(1) and eight equivalent Pb(1) atoms to form a mixture of distorted corner, face, and edge-sharing PbAl4Pb8 cuboctahedra. is represented by the CIF card [CIF]
data_AlPb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.069
_cell_length_b   6.069
_cell_length_c   6.069
_cell_angle_alpha   133.180
_cell_angle_beta   133.180
_cell_angle_gamma   68.371
_symmetry_Int_Tables_number   1
_cell_volume   116.781
_cell_formula_units_Z   1
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  0.000  0.000  0.000  1.0
  Pb  Pb1  1  0.750  0.250  0.500  1.0
  Pb  Pb2  1  0.250  0.750  0.500  1.0
  Pb  Pb3  1  0.500  0.500  0.000  1.0
[/CIF]
.
The crystal structure described by AlPb3 crystallizes in the tetragonal I4/mmm space group. Al(1) is bonded in a 12-coordinate geometry to four equivalent Pb(2) atoms. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 12-coordinate geometry to four equivalent Pb(2) atoms. In the second Pb site, Pb(2) is bonded to four equivalent Al(1) and eight equivalent Pb(1) atoms to form a mixture of distorted corner, face, and edge-sharing PbAl4Pb8 cuboctahedra. is represented by the CIF card [CIF]
data_AlPb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.069
_cell_length_b   6.069
_cell_length_c   6.069
_cell_angle_alpha   133.180
_cell_angle_beta   133.180
_cell_angle_gamma   68.371
_symmetry_Int_Tables_number   1
_cell_volume   116.781
_cell_formula_units_Z   1
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  0.000  0.000  0.000  1.0
  Pb  Pb1  1  0.750  0.250  0.500  1.0
  Pb  Pb2  1  0.250  0.750  0.500  1.0
  Pb  Pb3  1  0.500  0.500  0.000  1.0
[/CIF]
.