data_[Ir4Os8W4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ir  2.2000  1.3500  0.7650
  Os  2.2000  1.3000  0.6730
  W  2.3600  1.3500  0.7667
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.5579]
_cell_length_b [9.5958]
_cell_length_c [4.4116]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [IrOs2W]
_chemical_formula_sum '[Ir4 Os8 W4]'
_cell_volume [235.2829]
_cell_formula_units_Z [4]
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
[
  Os  Os0  8  0.2471  0.4196  0.7500  1
  Ir  Ir1  4  0.0000  0.1659  0.7500  1
  W  W2  4  0.0000  0.3360  0.2500  1
]