data_[Na6Hg2O1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Hg  2.0000  1.5000  1.2450
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-62m]
_cell_length_a [8.9555]
_cell_length_b [8.9555]
_cell_length_c [3.3346]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [189]
_chemical_formula_structural [Na6Hg2O]
_chemical_formula_sum '[Na6 Hg2 O1]'
_cell_volume [231.6092]
_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  3  0.0000  0.1835  0.0000  1
  Na  Na1  3  0.0000  0.5670  0.5000  1
  Hg  Hg2  2  0.3333  0.6667  0.0000  1
  O  O3  1  0.0000  0.0000  0.5000  1
]