data_[Pm4Nd12Ir8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Nd  1.1400  1.8500  1.2765
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.7176]
_cell_length_b [4.3910]
_cell_length_c [11.2132]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.1282]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [PmNd3Ir2]
_chemical_formula_sum '[Pm4 Nd12 Ir8]'
_cell_volume [732.5804]
_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
[
  Pm  Pm0  4  0.0745  0.5000  0.6687  1
  Nd  Nd1  4  0.0544  0.0000  0.2207  1
  Nd  Nd2  4  0.1705  0.5000  0.0328  1
  Nd  Nd3  4  0.2107  0.0000  0.5916  1
  Ir  Ir4  4  0.1178  0.5000  0.4167  1
  Ir  Ir5  4  0.1349  0.0000  0.8478  1
]