data_[K4Tb2Bi4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Tb  1.1000  1.7500  0.9815
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.1411]
_cell_length_b [10.5536]
_cell_length_c [6.7476]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.9576]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Tb(BiO3)2]
_chemical_formula_sum '[K4 Tb2 Bi4 O12]'
_cell_volume [416.0133]
_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
[
  K  K0  4  0.0000  0.1694  0.0000  1.0
  Tb  Tb1  2  0.0000  0.0000  0.5000  1.0
  Bi  Bi2  4  0.0000  0.3351  0.5000  1.0
  O  O3  8  0.2218  0.1695  0.6811  1.0
  O  O4  4  0.2452  0.5000  0.6855  1.0
]