data_[Pm1Er2Sb1O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Er  1.2400  1.7500  1.0300
  Sb  2.0500  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [4.0708]
_cell_length_b [7.3515]
_cell_length_c [5.2426]
_cell_angle_alpha [90.0000]
_cell_angle_beta [94.0508]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [PmEr2SbO8]
_chemical_formula_sum '[Pm1 Er2 Sb1 O8]'
_cell_volume [156.5022]
_cell_formula_units_Z [1]
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  1  0.0000  0.5000  0.0000  1
  Er  Er1  2  0.5000  0.2459  0.5000  1
  Sb  Sb2  1  0.0000  0.0000  0.0000  1
  O  O3  4  0.0472  0.2144  0.7540  1
  O  O4  2  0.4287  0.0000  0.2197  1
  O  O5  2  0.4968  0.5000  0.2576  1
]