data_[Ca4Bi4]
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 [C2/m]
_cell_length_a [12.3415]
_cell_length_b [4.5328]
_cell_length_c [4.8493]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.0969]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [CaBi]
_chemical_formula_sum '[Ca4 Bi4]'
_cell_volume [259.2891]
_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  0.1227  0.0000  0.3030  1.0
  Bi  Bi1  4  0.1138  0.5000  0.7770  1.0
]