data_[Pm16Ir4O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ir  2.2000  1.3500  0.7650
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [13.3216]
_cell_length_b [6.6871]
_cell_length_c [7.2215]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.6941]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Pm4IrO]
_chemical_formula_sum '[Pm16 Ir4 O4]'
_cell_volume [612.8771]
_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  8  0.1009  0.4176  0.9662  1
  Pm  Pm1  8  0.1491  0.0673  0.6249  1
  Ir  Ir2  4  0.0000  0.2048  0.2500  1
  O  O3  4  0.2500  0.2500  0.0000  1
]