data_[Cu4Ir4Au4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cu  1.9000  1.3500  0.8200
  Ir  2.2000  1.3500  0.7650
  Au  2.5400  1.3500  1.0700
]
_symmetry_space_group_name_H-M [Fmm2]
_cell_length_a [2.7923]
_cell_length_b [4.7265]
_cell_length_c [13.8584]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [42]
_chemical_formula_structural [CuIrAu]
_chemical_formula_sum '[Cu4 Ir4 Au4]'
_cell_volume [182.8982]
_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
[
  Cu  Cu0  4  0.0000  0.0000  0.6697  1
  Ir  Ir1  4  0.0000  0.0000  0.3241  1
  Au  Au2  4  0.0000  0.0000  0.0062  1
]