data_[Ce2Pm4Ir6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Pm  1.1300  1.8500  1.1100
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [4.0448]
_cell_length_b [5.7973]
_cell_length_c [12.3428]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [CePm2Ir3]
_chemical_formula_sum '[Ce2 Pm4 Ir6]'
_cell_volume [289.4213]
_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
[
  Ce  Ce0  2  0.0000  0.5000  0.0000  1
  Pm  Pm1  4  0.0000  0.5000  0.3313  1
  Ir  Ir2  4  0.0000  0.0000  0.3451  1
  Ir  Ir3  2  0.0000  0.0000  0.0000  1
]