data_[Rb10Bi4Se10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Bi  2.0200  1.6000  1.0350
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.8811]
_cell_length_b [5.0329]
_cell_length_c [13.3935]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.9366]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb5Bi2Se5]
_chemical_formula_sum '[Rb10 Bi4 Se10]'
_cell_volume [954.3631]
_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
[
  Rb  Rb0  4  0.1586  0.5000  0.0565  1.0
  Rb  Rb1  4  0.2475  0.0000  0.6428  1.0
  Rb  Rb2  2  0.0000  0.5000  0.5000  1.0
  Bi  Bi3  4  0.0411  0.0000  0.7920  1.0
  Se  Se4  4  0.1059  0.0000  0.3892  1.0
  Se  Se5  4  0.1423  0.5000  0.7876  1.0
  Se  Se6  2  0.0000  0.0000  0.0000  1.0
]