data_[Rb4U2Hg4Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  U  1.3800  1.7500  0.9913
  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 [18.4723]
_cell_length_b [4.3987]
_cell_length_c [9.1590]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.6376]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2U(HgTe2)2]
_chemical_formula_sum '[Rb4 U2 Hg4 Te8]'
_cell_volume [665.2238]
_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  0.1305  0.0000  0.5842  1
  U  U1  2  0.0000  0.0000  0.0000  1
  Hg  Hg2  4  0.1986  0.5000  0.0209  1
  Te  Te3  4  0.0207  0.5000  0.7817  1
  Te  Te4  4  0.1750  0.0000  0.2348  1
]