data_[Na2Pr2I6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Pr  1.1300  1.8500  1.0600
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P-31m]
_cell_length_a [7.9514]
_cell_length_b [7.9514]
_cell_length_c [19.8879]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [162]
_chemical_formula_structural [NaPrI3]
_chemical_formula_sum '[Na2 Pr2 I6]'
_cell_volume [1088.9535]
_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  0.3771  1
  Pr  Pr1  2  0.3333  0.6667  0.5000  1
  I  I2  6  0.0000  0.3715  0.3967  1
]