data_[Cr2Re2Ir4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cr  1.6600  1.4000  0.9400
  Re  1.9000  1.3500  0.7125
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [3.8295]
_cell_length_b [3.8295]
_cell_length_c [7.6629]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [CrReIr2]
_chemical_formula_sum '[Cr2 Re2 Ir4]'
_cell_volume [112.3765]
_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
[
  Cr  Cr0  2  0.0000  0.0000  0.0000  1.0
  Re  Re1  2  0.0000  0.0000  0.5000  1.0
  Ir  Ir2  4  0.0000  0.5000  0.2500  1.0
]