data_[Nb2Bi2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nb  1.6000  1.4500  0.8200
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2]
_cell_length_a [6.0955]
_cell_length_b [5.8562]
_cell_length_c [5.9701]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.9569]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [NbBiO4]
_chemical_formula_sum '[Nb2 Bi2 O8]'
_cell_volume [196.2306]
_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
[
  Nb  Nb0  2  0.0000  0.9423  0.0000  1.0
  Bi  Bi1  2  0.0000  0.2974  0.5000  1.0
  O  O2  4  0.1454  0.0197  0.3504  1.0
  O  O3  4  0.2439  0.2395  0.9506  1.0
]