data_Al3Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.11
_cell_length_b   3.88
_cell_length_c   7.08
_cell_angle_alpha   90.0
_cell_angle_beta   90.91
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al3Pb
_chemical_formula_sum   'Al3 Pb1'
_cell_volume   85.27
_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  0.55  0.94  0.39  1.0
  Al  Al1  1  0.0  0.0  0.0  1.0
  Al  Al2  1  0.45  0.94  0.68  1.0
  Pb  Pb3  1  0.94  0.0  0.54  1.0

data_Al3Pb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.11
_cell_length_b   3.88
_cell_length_c   7.08
_cell_angle_alpha   90.0
_cell_angle_beta   90.91
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al3Pb
_chemical_formula_sum   'Al3 Pb1'
_cell_volume   85.27
_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  0.0  0.0  0.0  1.0
  Al  Al1  1  0.45  0.94  0.68  1.0
  Al  Al2  1  0.55  0.94  0.39  1.0
  Pb  Pb3  1  0.94  0.0  0.54  1.0

Al Al Al Pb
Al Al Al Pb 0 3 o + o 0 1 + + o 0 1 o + o 0 2 o o o 1 2 - - - 1 2 o - - 1 3 - o - 1 1 + o o 2 3 - + o 2 3 o + o 