data_[Rb4Sr2Hg4Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sr  0.9500  2.0000  1.3200
  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 [17.8521]
_cell_length_b [4.7327]
_cell_length_c [8.8137]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.6560]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Sr(HgTe2)2]
_chemical_formula_sum '[Rb4 Sr2 Hg4 Te8]'
_cell_volume [705.5208]
_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  0.1272  0.0000  0.5618  1.0
  Sr  Sr1  2  0.0000  0.0000  0.0000  1.0
  Hg  Hg2  4  0.1640  0.5000  0.9861  1.0
  Te  Te3  4  0.0172  0.5000  0.7462  1.0
  Te  Te4  4  0.2069  0.0000  0.1895  1.0
]