data_[Na2Ag2Hg2]
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 [P1]
_cell_length_a [4.9531]
_cell_length_b [5.2584]
_cell_length_c [5.9825]
_cell_angle_alpha [84.3999]
_cell_angle_beta [66.5899]
_cell_angle_gamma [88.9989]
_symmetry_Int_Tables_number [1]
_chemical_formula_structural [NaAgHg]
_chemical_formula_sum '[Na2 Ag2 Hg2]'
_cell_volume [142.2700]
_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  1  0.0456  0.8556  0.4139  1.0
  Na  Na1  1  0.2286  0.4004  0.0725  1.0
  Ag  Ag2  1  0.3696  0.9414  0.7720  1.0
  Ag  Ag3  1  0.7536  0.7864  0.0086  1.0
  Hg  Hg4  1  0.5342  0.4455  0.4544  1.0
  Hg  Hg5  1  0.8864  0.2987  0.7545  1.0
]