data_[Ca8Bi4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [7.9934]
_cell_length_b [4.9275]
_cell_length_c [10.2225]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [Ca2Bi]
_chemical_formula_sum '[Ca8 Bi4]'
_cell_volume [402.6373]
_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
[
  Ca  Ca0  4  0.0487  0.2500  0.8147  1.0
  Ca  Ca1  4  0.1388  0.2500  0.4383  1.0
  Bi  Bi2  4  0.2290  0.2500  0.1257  1.0
]