data_[Nb8Bi8Pb4O36]
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
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [25.0535]
_cell_length_b [5.5584]
_cell_length_c [5.5588]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Nb2Bi2PbO9]
_chemical_formula_sum '[Nb8 Bi8 Pb4 O36]'
_cell_volume [774.0923]
_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
[
  Nb  Nb0  8  0.0869  0.2517  0.5170  1
  Bi  Bi1  8  0.2001  0.2229  0.0703  1
  Pb  Pb2  4  0.0000  0.2531  0.0371  1
  O  O3  8  0.0713  0.0300  0.7731  1
  O  O4  8  0.0896  0.4562  0.2031  1
  O  O5  8  0.1605  0.1838  0.4903  1
  O  O6  8  0.2479  0.4913  0.2950  1
  O  O7  4  0.0000  0.3014  0.4817  1
]