data_[Ba12Tl8Hg12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Tl  1.6200  1.9000  1.3325
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.1772]
_cell_length_b [12.7368]
_cell_length_c [17.3874]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Ba3Tl2Hg3]
_chemical_formula_sum '[Ba12 Tl8 Hg12]'
_cell_volume [1146.5404]
_cell_formula_units_Z [4]
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
[
  Ba  Ba0  8  0.0000  0.0928  0.6013  1
  Ba  Ba1  4  0.0000  0.3709  0.7500  1
  Tl  Tl2  8  0.0000  0.2063  0.0986  1
  Hg  Hg3  8  0.0000  0.3934  0.5429  1
  Hg  Hg4  4  0.0000  0.3503  0.2500  1
]