data_[Rb4Hg4Sb12]
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 [7.9556]
_cell_length_b [10.9704]
_cell_length_c [7.7204]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [RbHgSb3]
_chemical_formula_sum '[Rb4 Hg4 Sb12]'
_cell_volume [673.8041]
_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  4  0.0000  0.2474  0.2500  1.0
  Hg  Hg1  4  0.0000  0.3696  0.7500  1.0
  Sb  Sb2  8  0.2357  0.5000  0.0000  1.0
  Sb  Sb3  4  0.0000  0.0965  0.7500  1.0
]