data_[K6Ge4Bi4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ge  2.0100  1.2500  0.7700
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [4.6261]
_cell_length_b [5.5655]
_cell_length_c [20.7870]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [K3(GeBi)2]
_chemical_formula_sum '[K6 Ge4 Bi4]'
_cell_volume [535.1954]
_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  0.5000  0.3211  1
  K  K1  2  0.0000  0.0000  0.0000  1
  Ge  Ge2  4  0.0000  0.0000  0.4407  1
  Bi  Bi3  4  0.0000  0.5000  0.1379  1
]