data_[Na4Hg2Os2O12]
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
  Os  2.2000  1.3000  0.6730
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [6.0831]
_cell_length_b [6.2356]
_cell_length_c [9.4861]
_cell_angle_alpha [90.0000]
_cell_angle_beta [128.8581]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Na2HgOsO6]
_chemical_formula_sum '[Na4 Hg2 Os2 O12]'
_cell_volume [280.1972]
_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  0.2306  0.0526  0.2512  1.0
  Hg  Hg1  2  0.5000  0.0000  0.0000  1.0
  Os  Os2  2  0.0000  0.0000  0.5000  1.0
  O  O3  4  0.1327  0.0707  0.7462  1.0
  O  O4  4  0.1687  0.7360  0.5700  1.0
  O  O5  4  0.3219  0.1155  0.5527  1.0
]