data_[Tl36Ag3Hg21]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Ag  1.9300  1.6000  1.0867
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [11.8296]
_cell_length_b [11.8296]
_cell_length_c [14.4753]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Tl12AgHg7]
_chemical_formula_sum '[Tl36 Ag3 Hg21]'
_cell_volume [1754.2924]
_cell_formula_units_Z [3]
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
[
  Tl  Tl0  18  0.0203  0.4437  0.2085  1
  Tl  Tl1  18  0.0398  0.1827  0.3029  1
  Ag  Ag2  3  0.0000  0.0000  0.0000  1
  Hg  Hg3  18  0.0738  0.8264  0.9135  1
  Hg  Hg4  3  0.0000  0.0000  0.5000  1
]