data_[Na1Al1Pb2F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Al  1.6100  1.2500  0.6750
  Pb  2.3300  1.8000  1.1225
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [4.9669]
_cell_length_b [5.2777]
_cell_length_c [7.3314]
_cell_angle_alpha [90.8053]
_cell_angle_beta [90.9570]
_cell_angle_gamma [90.7695]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [NaAlPb2F8]
_chemical_formula_sum '[Na1 Al1 Pb2 F8]'
_cell_volume [192.1223]
_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  1  0.0000  0.0000  0.5000  1
  Al  Al1  1  0.0000  0.0000  0.0000  1
  Pb  Pb2  2  0.4435  0.4901  0.2383  1
  F  F3  2  0.1430  0.7568  0.8468  1
  F  F4  2  0.1770  0.8816  0.2072  1
  F  F5  2  0.2810  0.2155  0.9550  1
  F  F6  2  0.3033  0.3095  0.5242  1
]