data_[Na2Pr1Cr1F8]
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
  Cr  1.6600  1.4000  0.9400
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [4.3265]
_cell_length_b [7.1548]
_cell_length_c [5.4619]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.1872]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Na2PrCrF8]
_chemical_formula_sum '[Na2 Pr1 Cr1 F8]'
_cell_volume [168.9514]
_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
[
  Na  Na0  2  0.5000  0.2275  0.5000  1.0
  Pr  Pr1  1  0.0000  0.5000  0.0000  1.0
  Cr  Cr2  1  0.0000  0.0000  0.0000  1.0
  F  F3  4  0.1135  0.2164  0.7883  1.0
  F  F4  2  0.3578  0.0000  0.2198  1.0
  F  F5  2  0.4539  0.5000  0.2445  1.0
]