data_[Na2Ta2I12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ta  1.5000  1.4500  0.8200
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [7.7019]
_cell_length_b [13.2319]
_cell_length_c [7.5163]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.9516]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaTaI6]
_chemical_formula_sum '[Na2 Ta2 I12]'
_cell_volume [720.0180]
_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  2  0.0000  0.0000  0.0000  1.0
  Ta  Ta1  2  0.0000  0.5000  0.5000  1.0
  I  I2  8  0.2154  0.3484  0.7286  1.0
  I  I3  4  0.2256  0.5000  0.2851  1.0
]