data_[Na6Ag2Hg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ag  1.9300  1.6000  1.0867
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.7314]
_cell_length_b [6.0573]
_cell_length_c [7.9401]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.9348]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Na3AgHg]
_chemical_formula_sum '[Na6 Ag2 Hg2]'
_cell_volume [266.3464]
_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  0.0000  1
  Na  Na1  2  0.3151  0.7500  0.4152  1
  Na  Na2  2  0.4558  0.7500  0.8527  1
  Ag  Ag3  2  0.2426  0.2500  0.7413  1
  Hg  Hg4  2  0.1027  0.2500  0.3623  1
]