data_SiBiPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.91
_cell_length_b   5.91
_cell_length_c   3.5
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   109.49
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiBiPb2
_chemical_formula_sum   'Si1 Bi1 Pb2'
_cell_volume   115.08
_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
  Si  Si3  1  0.0  0.0  0.0  1.0
  Bi  Bi0  1  0.41  0.0  0.0  1.0
  Pb  Pb1  1  0.71  0.59  0.75  1.0
  Pb  Pb2  1  0.71  0.41  0.75  1.0

data_SiBiPb2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.5
_cell_length_b   5.91
_cell_length_c   5.91
_cell_angle_alpha   109.49
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiBiPb2
_chemical_formula_sum   'Si1 Bi1 Pb2'
_cell_volume   115.08
_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
  Si  Si0  1  0.0  0.0  0.0  1.0
  Bi  Bi1  1  -0.0  0.41  0.0  1.0
  Pb  Pb2  1  0.75  0.71  0.41  1.0
  Pb  Pb3  1  0.75  0.71  0.59  1.0

Si Bi Pb Pb