data_[Pr4Cu2Ir2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Cu  1.9000  1.3500  0.8200
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.7833]
_cell_length_b [4.4314]
_cell_length_c [7.9492]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.4988]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Pr2CuIr]
_chemical_formula_sum '[Pr4 Cu2 Ir2]'
_cell_volume [190.8255]
_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
[
  Pr  Pr0  2  0.2179  0.2500  0.9366  1
  Pr  Pr1  2  0.2276  0.2500  0.4251  1
  Cu  Cu2  2  0.3530  0.7500  0.7136  1
  Ir  Ir3  2  0.3508  0.7500  0.2152  1
]