data_[Na12Sr4O32]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sr  0.9500  2.0000  1.3200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Fmmm]
_cell_length_a [8.0505]
_cell_length_b [8.6004]
_cell_length_c [9.7830]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [69]
_chemical_formula_structural [Na3SrO8]
_chemical_formula_sum '[Na12 Sr4 O32]'
_cell_volume [677.3565]
_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  8  0.2500  0.2500  0.2500  1
  Na  Na1  4  0.0000  0.0000  0.0000  1
  Sr  Sr2  4  0.0000  0.0000  0.5000  1
  O  O3  16  0.0000  0.0806  0.2481  1
  O  O4  16  0.2408  0.1697  0.0000  1
]