data_[Ta4Ir8Os4Ru16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ta  1.5000  1.4500  0.8200
  Ir  2.2000  1.3500  0.7650
  Os  2.2000  1.3000  0.6730
  Ru  2.2000  1.3000  0.6610
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [5.4020]
_cell_length_b [9.2619]
_cell_length_c [10.2238]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [TaIr2OsRu4]
_chemical_formula_sum '[Ta4 Ir8 Os4 Ru16]'
_cell_volume [511.5212]
_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
[
  Ta  Ta0  4  0.0000  0.0000  0.5000  1
  Ru  Ru1  8  0.0000  0.0014  0.7602  1
  Ru  Ru2  8  0.2437  0.2500  0.0122  1
  Ir  Ir3  4  0.0000  0.0000  0.0000  1
  Os  Os4  4  0.2500  0.2500  0.2500  1
  Ir  Ir5  4  0.2500  0.2500  0.7500  1
]