data_[Sm8Bi8O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.7077]
_cell_length_b [4.2160]
_cell_length_c [11.5968]
_cell_angle_alpha [90.0000]
_cell_angle_beta [123.7199]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sm2Bi2O]
_chemical_formula_sum '[Sm8 Bi8 O4]'
_cell_volume [557.4417]
_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
[
  Sm  Sm0  4  0.0303  0.5000  0.1932  1.0
  Sm  Sm1  4  0.1969  0.5000  0.5807  1.0
  Bi  Bi2  4  0.0500  0.0000  0.6594  1.0
  Bi  Bi3  4  0.1363  0.0000  0.0653  1.0
  O  O4  4  0.2113  0.5000  0.3926  1.0
]