data_[U8Bi8N4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  U  1.3800  1.7500  0.9913
  Bi  2.0200  1.6000  1.0350
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Ibam]
_cell_length_a [6.5466]
_cell_length_b [12.8424]
_cell_length_c [5.9747]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [72]
_chemical_formula_structural [U2Bi2N]
_chemical_formula_sum '[U8 Bi8 N4]'
_cell_volume [502.3171]
_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
[
  U  U0  8  0.1855  0.4082  0.0000  1
  Bi  Bi1  8  0.1713  0.1571  0.0000  1
  N  N2  4  0.0000  0.5000  0.2500  1
]