data_[Rb4Ac2Hg4Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ac  1.1000  1.9500  1.2600
  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 [17.3142]
_cell_length_b [5.0894]
_cell_length_c [8.6951]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.0526]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Ac(HgTe2)2]
_chemical_formula_sum '[Rb4 Ac2 Hg4 Te8]'
_cell_volume [724.2221]
_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  0.1328  0.0000  0.5770  1
  Ac  Ac1  2  0.0000  0.0000  0.0000  1
  Hg  Hg2  4  0.1708  0.5000  0.0108  1
  Te  Te3  4  0.0094  0.5000  0.7500  1
  Te  Te4  4  0.2049  0.0000  0.1862  1
]