data_[Rb8Cd8Hg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Cd  1.6900  1.5500  1.0900
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [P4_2/n]
_cell_length_a [10.5002]
_cell_length_b [10.5002]
_cell_length_c [7.1250]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [86]
_chemical_formula_structural [Rb4Cd4Hg]
_chemical_formula_sum '[Rb8 Cd8 Hg2]'
_cell_volume [785.5533]
_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  8  0.0785  0.3092  0.1318  1
  Cd  Cd1  8  0.0627  0.1540  0.6406  1
  Hg  Hg2  2  0.0000  0.0000  0.0000  1
]