data_[Si10Ge2W20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Si  1.9000  1.1000  0.5400
  Ge  2.0100  1.2500  0.7700
  W  2.3600  1.3500  0.7667
]
_symmetry_space_group_name_H-M [I422]
_cell_length_a [9.7128]
_cell_length_b [9.7128]
_cell_length_c [5.0133]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [97]
_chemical_formula_structural [Si5GeW10]
_chemical_formula_sum '[Si10 Ge2 W20]'
_cell_volume [472.9464]
_cell_formula_units_Z [2]
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  8  0.1687  0.3313  0.7500  1.0
  Si  Si1  2  0.0000  0.0000  0.0000  1.0
  Ge  Ge2  2  0.0000  0.0000  0.5000  1.0
  W  W3  16  0.0752  0.2274  0.2472  1.0
  W  W4  4  0.0000  0.5000  0.0000  1.0
]