data_[Ac2Cr4Bi2O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Cr  1.6600  1.4000  0.9400
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I-4m2]
_cell_length_a [7.5418]
_cell_length_b [7.5418]
_cell_length_c [6.5785]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [119]
_chemical_formula_structural [AcCr2BiO8]
_chemical_formula_sum '[Ac2 Cr4 Bi2 O16]'
_cell_volume [374.1763]
_cell_formula_units_Z [2]
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
[
  Ac  Ac0  2  0.0000  0.0000  0.0000  1
  Cr  Cr1  2  0.0000  0.0000  0.5000  1
  Cr  Cr2  2  0.0000  0.5000  0.2500  1
  Bi  Bi3  2  0.0000  0.5000  0.7500  1
  O  O4  8  0.0000  0.1810  0.6615  1
  O  O5  8  0.0000  0.3278  0.0752  1
]