data_[Na2Li4Hg12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Li  0.9800  1.4500  0.9000
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.2609]
_cell_length_b [6.2113]
_cell_length_c [5.2779]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.8689]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na(LiHg3)2]
_chemical_formula_sum '[Na2 Li4 Hg12]'
_cell_volume [466.4505]
_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  2  0.0000  0.0000  0.5000  1
  Li  Li1  4  0.1451  0.5000  0.2827  1
  Hg  Hg2  8  0.1884  0.2536  0.7461  1
  Hg  Hg3  4  0.0000  0.2535  0.0000  1
]