data_[Nd4Np2Bi2O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Np  1.3600  1.7500  1.0000
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [7.3684]
_cell_length_b [7.5148]
_cell_length_c [7.2276]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Nd2NpBiO8]
_chemical_formula_sum '[Nd4 Np2 Bi2 O16]'
_cell_volume [400.2035]
_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
[
  Nd  Nd0  4  0.0000  0.5000  0.2557  1
  Np  Np1  2  0.0000  0.0000  0.0000  1
  Bi  Bi2  2  0.0000  0.0000  0.5000  1
  O  O3  8  0.0000  0.1805  0.2149  1
  O  O4  4  0.1919  0.5000  0.5000  1
  O  O5  4  0.2283  0.5000  0.0000  1
]