data_[Na1Tl2Hg2Pb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Tl  1.6200  1.9000  1.3325
  Hg  2.0000  1.5000  1.2450
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P-3m1]
_cell_length_a [4.9975]
_cell_length_b [4.9975]
_cell_length_c [12.6909]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [164]
_chemical_formula_structural [NaTl2(HgPb)2]
_chemical_formula_sum '[Na1 Tl2 Hg2 Pb2]'
_cell_volume [274.4926]
_cell_formula_units_Z [1]
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
[
  Na  Na0  1  0.0000  0.0000  0.0000  1
  Tl  Tl1  2  0.0000  0.0000  0.2399  1
  Hg  Hg2  2  0.3333  0.6667  0.6755  1
  Pb  Pb3  2  0.3333  0.6667  0.4086  1
]