data_[Rb4Hg4Sb2Te8]
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
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.1565]
_cell_length_b [4.6358]
_cell_length_c [8.5287]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.2725]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Hg2SbTe4]
_chemical_formula_sum '[Rb4 Hg4 Sb2 Te8]'
_cell_volume [673.3976]
_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  0.1364  0.0000  0.5691  1.0
  Hg  Hg1  4  0.1679  0.5000  0.9363  1.0
  Sb  Sb2  2  0.0000  0.0000  0.0000  1.0
  Te  Te3  4  0.0014  0.5000  0.7560  1.0
  Te  Te4  4  0.1934  0.0000  0.1695  1.0
]