data_[Na4Tl6Hg14]
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
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [5.3560]
_cell_length_b [24.3259]
_cell_length_c [5.4193]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Na2Tl3Hg7]
_chemical_formula_sum '[Na4 Tl6 Hg14]'
_cell_volume [706.0812]
_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
[
  Na  Na0  4  0.0000  0.1470  0.0000  1
  Tl  Tl1  4  0.0000  0.3475  0.5000  1
  Tl  Tl2  2  0.0000  0.5000  0.5000  1
  Hg  Hg3  4  0.0000  0.0768  0.5000  1
  Hg  Hg4  4  0.0000  0.2773  0.0000  1
  Hg  Hg5  4  0.0000  0.4237  0.0000  1
  Hg  Hg6  2  0.0000  0.0000  0.0000  1
]