data_[Rb4Tb2Hg4Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Tb  1.1000  1.7500  0.9815
  Hg  2.0000  1.5000  1.2450
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.7015]
_cell_length_b [4.5284]
_cell_length_c [9.0112]
_cell_angle_alpha [90.0000]
_cell_angle_beta [113.4397]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Tb(HgTe2)2]
_chemical_formula_sum '[Rb4 Tb2 Hg4 Te8]'
_cell_volume [662.7258]
_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  0.1293  0.0000  0.5802  1.0
  Tb  Tb1  2  0.0000  0.0000  0.0000  1.0
  Hg  Hg2  4  0.1864  0.5000  0.0062  1.0
  Te  Te3  4  0.0166  0.5000  0.7725  1.0
  Te  Te4  4  0.1864  0.0000  0.2197  1.0
]