data_[Na4Pb4Se8O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Pb  2.3300  1.8000  1.1225
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.7305]
_cell_length_b [11.0214]
_cell_length_c [8.2222]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.1538]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [NaPb(SeO3)2]
_chemical_formula_sum '[Na4 Pb4 Se8 O24]'
_cell_volume [697.7077]
_cell_formula_units_Z [4]
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  0.2079  0.7500  1.0
  Pb  Pb1  4  0.0000  0.3769  0.2500  1.0
  Se  Se2  8  0.2059  0.1041  0.3854  1.0
  O  O3  8  0.0798  0.3665  0.5399  1.0
  O  O4  8  0.1970  0.2106  0.2298  1.0
  O  O5  8  0.2207  0.0322  0.7840  1.0
]