data_Si2PtW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.78
_cell_length_b   3.99
_cell_length_c   5.27
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Si2PtW
_chemical_formula_sum   'Si2 Pt1 W1'
_cell_volume   58.37
_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  Si1  1  0.0  0.0  0.11  1.0
  Si  Si2  1  0.39  1.0  0.49  1.0
  Pt  Pt0  1  0.39  1.0  0.18  1.0
  W  W3  1  0.0  0.0  0.39  1.0

data_Si2PtW
_symmetry_space_group_name_H-M   Pm
_cell_length_a   2.78
_cell_length_b   3.99
_cell_length_c   5.27
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   Si2PtW
_chemical_formula_sum   'Si2 Pt1 W1'
_cell_volume   58.37
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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  0.5  0.11  1.0
  Si  Si1  1  0.39  0.5  0.49  1.0
  Pt  Pt2  1  0.39  0.5  0.18  1.0
  W  W3  1  0.0  0.5  0.39  1.0

Si Si Pt W