data_[Na2Cr2Bi4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  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 [P2_1/c]
_cell_length_a [5.4729]
_cell_length_b [6.0520]
_cell_length_c [9.6883]
_cell_angle_alpha [90.0000]
_cell_angle_beta [123.1514]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [NaCr(BiO3)2]
_chemical_formula_sum '[Na2 Cr2 Bi4 O12]'
_cell_volume [268.6624]
_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
[
  Na  Na0  2  0.5000  0.0000  0.0000  1.0
  Cr  Cr1  2  0.0000  0.0000  0.5000  1.0
  Bi  Bi2  4  0.2915  0.5493  0.7810  1.0
  O  O3  4  0.0918  0.5926  0.2139  1.0
  O  O4  4  0.2622  0.2464  0.6002  1.0
  O  O5  4  0.3366  0.6624  0.0241  1.0
]