data_[Rb8Hg16Bi16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Hg  2.0000  1.5000  1.2450
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [Fddd]
_cell_length_a [7.4067]
_cell_length_b [12.9238]
_cell_length_c [16.4362]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [70]
_chemical_formula_structural [Rb(HgBi)2]
_chemical_formula_sum '[Rb8 Hg16 Bi16]'
_cell_volume [1573.3215]
_cell_formula_units_Z [8]
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  8  0.0000  0.0000  0.5000  1
  Hg  Hg1  16  0.0000  0.2001  0.0000  1
  Bi  Bi2  16  0.0000  0.0000  0.1175  1
]