data_[Pm8Ru2O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ru  2.2000  1.3000  0.6610
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I4/m]
_cell_length_a [8.5689]
_cell_length_b [8.5689]
_cell_length_c [5.5105]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [87]
_chemical_formula_structural [Pm4RuO10]
_chemical_formula_sum '[Pm8 Ru2 O20]'
_cell_volume [404.6191]
_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
[
  Pm  Pm0  8  0.0983  0.3032  0.5000  1
  Ru  Ru1  2  0.0000  0.0000  0.0000  1
  O  O2  16  0.0939  0.8229  0.2211  1
  O  O3  4  0.0000  0.5000  0.2500  1
]