data_[Na6Sm4Tl2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sm  1.1700  1.8500  1.2290
  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 [6.0291]
_cell_length_b [10.4429]
_cell_length_c [6.0073]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.3940]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na3Sm2TlO6]
_chemical_formula_sum '[Na6 Sm4 Tl2 O12]'
_cell_volume [356.7644]
_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  0.1581  0.5000  1.0
  Na  Na1  2  0.0000  0.5000  0.5000  1.0
  Sm  Sm2  4  0.0000  0.3330  0.0000  1.0
  Tl  Tl3  2  0.0000  0.0000  0.0000  1.0
  O  O4  8  0.2404  0.1670  0.2214  1.0
  O  O5  4  0.2382  0.5000  0.2217  1.0
]