data_[Zn4Bi8O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  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 [Cmcm]
_cell_length_a [4.3409]
_cell_length_b [10.9884]
_cell_length_c [10.9271]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [ZnBi2O5]
_chemical_formula_sum '[Zn4 Bi8 O20]'
_cell_volume [521.2252]
_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
[
  Zn  Zn0  4  0.0000  0.1829  0.7500  1.0
  Bi  Bi1  8  0.0000  0.1402  0.0706  1.0
  O  O2  8  0.0000  0.0543  0.6147  1.0
  O  O3  8  0.0000  0.3033  0.5798  1.0
  O  O4  4  0.0000  0.2408  0.2500  1.0
]