data_SiSnW2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.85
_cell_length_b   2.85
_cell_length_c   9.51
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   107.52
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiSnW2
_chemical_formula_sum   'Si1 Sn1 W2'
_cell_volume   73.7
_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  0.18  1.0
  Sn  Sn1  1  0.69  0.0  0.18  1.0
  W  W2  1  0.0  0.0  0.27  1.0
  W  W3  1  0.69  0.0  0.13  1.0

data_SiSnW2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.85
_cell_length_b   2.85
_cell_length_c   9.51
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   107.52
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiSnW2
_chemical_formula_sum   'Si1 Sn1 W2'
_cell_volume   73.7
_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  0.18  1.0
  Sn  Sn1  1  0.69  0.0  0.18  1.0
  W  W2  1  0.0  0.0  0.27  1.0
  W  W3  1  0.69  0.0  0.13  1.0

Si Sn W W
Si Sn W W 0 3 - o o 0 1 - o o 0 2 o o o 1 3 o o o 