data_[Cu2Re1Ag1Ir1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cu  1.9000  1.3500  0.8200
  Re  1.9000  1.3500  0.7125
  Ag  1.9300  1.6000  1.0867
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [4.5276]
_cell_length_b [4.5276]
_cell_length_c [4.9208]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [Cu2ReAgIr]
_chemical_formula_sum '[Cu2 Re1 Ag1 Ir1]'
_cell_volume [100.8741]
_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
[
  Cu  Cu0  2  0.0000  0.5000  0.0000  1
  Re  Re1  1  0.0000  0.0000  0.0000  1
  Ag  Ag2  1  0.0000  0.0000  0.5000  1
  Ir  Ir3  1  0.5000  0.5000  0.5000  1
]