data_[Na4Pm4Tl2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Pm  1.1300  1.8500  1.1100
  Tl  1.6200  1.9000  1.3325
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.0248]
_cell_length_b [10.9291]
_cell_length_c [5.8642]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.1871]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Pm2TlO6]
_chemical_formula_sum '[Na4 Pm4 Tl2 O12]'
_cell_volume [370.8310]
_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
[
  Na  Na0  4  0.0000  0.1565  0.0000  1
  Pm  Pm1  4  0.0000  0.3367  0.5000  1
  Tl  Tl2  2  0.0000  0.0000  0.5000  1
  O  O3  8  0.2220  0.1790  0.7136  1
  O  O4  4  0.2423  0.0000  0.2970  1
]