data_SiBi2Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.93
_cell_length_b   4.93
_cell_length_c   3.73
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiBi2Pt
_chemical_formula_sum   'Si1 Bi2 Pt1'
_cell_volume   90.45
_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  0.0  0.46  0.86  1.0
  Bi  Bi1  1  0.46  0.0  0.86  1.0
  Pt  Pt2  1  0.46  0.46  0.0  1.0

data_SiBi2Pt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.97
_cell_length_b   6.97
_cell_length_c   3.73
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SiBi2Pt
_chemical_formula_sum   'Si2 Bi4 Pt2'
_cell_volume   180.9
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.0  0.0  0.0  1.0
  Bi  Bi1  4  0.23  0.23  0.86  1.0
  Pt  Pt2  2  0.46  0.0  0.0  1.0

Si Bi Bi Pt
Si Bi Bi Pt 0 2 - o - 0 2 o o - 0 1 o - - 0 1 o o - 1 3 - o + 1 3 o o + 2 3 o - + 2 3 o o + 