data_[Ce1Y1Ir1Ru1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Y  1.2200  1.8000  1.0400
  Ir  2.2000  1.3500  0.7650
  Ru  2.2000  1.3000  0.6610
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [3.5173]
_cell_length_b [3.5173]
_cell_length_c [6.6954]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [CeYIrRu]
_chemical_formula_sum '[Ce1 Y1 Ir1 Ru1]'
_cell_volume [82.8298]
_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
[
  Ce  Ce0  1  0.0000  0.0000  0.3540  1.0
  Y  Y1  1  0.0000  0.0000  0.8561  1.0
  Ru  Ru2  1  0.5000  0.5000  0.1228  1.0
  Ir  Ir3  1  0.5000  0.5000  0.5950  1.0
]