data_[Na4Zn4Bi4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Zn  1.6500  1.3500  0.8800
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [6.4333]
_cell_length_b [6.6692]
_cell_length_c [9.2620]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [NaZnBiO4]
_chemical_formula_sum '[Na4 Zn4 Bi4 O16]'
_cell_volume [397.3886]
_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  0.2500  0.3567  1
  Zn  Zn1  4  0.2500  0.2500  0.7500  1
  Bi  Bi2  4  0.0000  0.0000  0.0000  1
  O  O3  8  0.0000  0.0364  0.7743  1
  O  O4  8  0.2235  0.2500  0.9944  1
]