data_[Rb16Cd2Hg4]
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 [C2/m]
_cell_length_a [23.4268]
_cell_length_b [6.5353]
_cell_length_c [9.3638]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.2048]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb8CdHg2]
_chemical_formula_sum '[Rb16 Cd2 Hg4]'
_cell_volume [1361.8408]
_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  4  0.0348  0.0000  0.7952  1.0
  Rb  Rb1  4  0.0946  0.5000  0.4488  1.0
  Rb  Rb2  4  0.1695  0.5000  0.9658  1.0
  Rb  Rb3  4  0.2063  0.0000  0.3179  1.0
  Cd  Cd4  2  0.0000  0.5000  0.0000  1.0
  Hg  Hg5  4  0.1833  0.0000  0.7079  1.0
]