data_[Pm12Os4O28]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Os  2.2000  1.3000  0.6730
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [10.8708]
_cell_length_b [7.5025]
_cell_length_c [7.5730]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Pm3OsO7]
_chemical_formula_sum '[Pm12 Os4 O28]'
_cell_volume [617.6438]
_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  0.2241  0.2992  0.7500  1
  Pm  Pm1  4  0.0000  0.0000  0.0000  1
  Os  Os2  4  0.0000  0.5000  0.0000  1
  O  O3  16  0.1261  0.3125  0.0376  1
  O  O4  8  0.1323  0.0240  0.7500  1
  O  O5  4  0.0000  0.4163  0.7500  1
]