data_[Cu8Bi8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cu  1.9000  1.3500  0.8200
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [I4/m]
_cell_length_a [9.8111]
_cell_length_b [9.8111]
_cell_length_c [3.9452]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [87]
_chemical_formula_structural [CuBi]
_chemical_formula_sum '[Cu8 Bi8]'
_cell_volume [379.7572]
_cell_formula_units_Z [8]
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
[
  Cu  Cu0  8  0.0834  0.4060  0.5000  1
  Bi  Bi1  8  0.1194  0.2098  0.0000  1
]