data_[Rb6Sn2Bi8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sn  1.9600  1.4500  0.8300
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [Pmmn]
_cell_length_a [7.0759]
_cell_length_b [14.2370]
_cell_length_c [7.0067]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [59]
_chemical_formula_structural [Rb3SnBi4]
_chemical_formula_sum '[Rb6 Sn2 Bi8]'
_cell_volume [705.8474]
_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  0.0000  0.2491  0.1736  1
  Rb  Rb1  2  0.0000  0.0000  0.5626  1
  Sn  Sn2  2  0.0000  0.5000  0.3204  1
  Bi  Bi3  4  0.0000  0.3554  0.6674  1
  Bi  Bi4  4  0.2448  0.0000  0.0738  1
]