data_[Rb12In20Hg8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  In  1.7800  1.5500  0.9400
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Ibam]
_cell_length_a [13.0061]
_cell_length_b [14.9572]
_cell_length_c [7.5432]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [72]
_chemical_formula_structural [Rb3In5Hg2]
_chemical_formula_sum '[Rb12 In20 Hg8]'
_cell_volume [1467.4181]
_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
[
  Rb  Rb0  8  0.2360  0.3795  0.0000  1.0
  Rb  Rb1  4  0.0000  0.0000  0.2500  1.0
  In  In2  8  0.0000  0.2520  0.2500  1.0
  In  In3  8  0.1240  0.3740  0.5000  1.0
  In  In4  4  0.0000  0.5000  0.2500  1.0
  Hg  Hg5  8  0.1521  0.1547  0.0000  1.0
]