data_[Rb4Hg2Te2Se2]
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
  Te  2.1000  1.4000  1.2933
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.7096]
_cell_length_b [4.7124]
_cell_length_c [11.0617]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.1189]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Rb2HgTeSe]
_chemical_formula_sum '[Rb4 Hg2 Te2 Se2]'
_cell_volume [431.4987]
_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  2  0.1820  0.2500  0.3962  1.0
  Rb  Rb1  2  0.2106  0.2500  0.9617  1.0
  Hg  Hg2  2  0.4951  0.2500  0.7417  1.0
  Te  Te3  2  0.2950  0.7500  0.6977  1.0
  Se  Se4  2  0.1966  0.7500  0.1809  1.0
]