data_[Rb8Hg16Sb8]
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
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.3284]
_cell_length_b [20.1179]
_cell_length_c [10.2483]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [RbHg2Sb]
_chemical_formula_sum '[Rb8 Hg16 Sb8]'
_cell_volume [1098.5850]
_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  4  0.0000  0.2939  0.7500  1.0
  Rb  Rb1  4  0.0000  0.5000  0.0000  1.0
  Hg  Hg2  8  0.0000  0.3042  0.1078  1.0
  Hg  Hg3  4  0.0000  0.0644  0.2500  1.0
  Hg  Hg4  4  0.0000  0.0819  0.7500  1.0
  Sb  Sb5  8  0.0000  0.1482  0.0055  1.0
]