data_[La1Pm2Ta1O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Pm  1.1300  1.8500  1.1100
  Ta  1.5000  1.4500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmmm]
_cell_length_a [3.9600]
_cell_length_b [5.5096]
_cell_length_c [7.5699]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [47]
_chemical_formula_structural [LaPm2TaO8]
_chemical_formula_sum '[La1 Pm2 Ta1 O8]'
_cell_volume [165.1596]
_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
[
  La  La0  1  0.0000  0.0000  0.5000  1
  Pm  Pm1  2  0.5000  0.5000  0.2522  1
  Ta  Ta2  1  0.0000  0.0000  0.0000  1
  O  O3  4  0.0000  0.2404  0.2064  1
  O  O4  2  0.5000  0.1813  0.0000  1
  O  O5  2  0.5000  0.2578  0.5000  1
]