data_[Pm16Sb8O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sb  2.0500  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmce]
_cell_length_a [6.8417]
_cell_length_b [15.5633]
_cell_length_c [7.6537]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [64]
_chemical_formula_structural [Pm4Sb2O3]
_chemical_formula_sum '[Pm16 Sb8 O12]'
_cell_volume [814.9515]
_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  0.0000  0.2263  0.1178  1
  Pm  Pm1  8  0.2500  0.0435  0.7500  1
  Sb  Sb2  8  0.0000  0.1032  0.4230  1
  O  O3  8  0.2500  0.2020  0.7500  1
  O  O4  4  0.0000  0.0000  0.0000  1
]