data_[Na2Cu2Hg4F12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Cu  1.9000  1.3500  0.8200
  Hg  2.0000  1.5000  1.2450
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2]
_cell_length_a [10.5425]
_cell_length_b [5.8470]
_cell_length_c [5.7238]
_cell_angle_alpha [90.0000]
_cell_angle_beta [121.1122]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [NaCuHg2F6]
_chemical_formula_sum '[Na2 Cu2 Hg4 F12]'
_cell_volume [302.0751]
_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  0.5043  0.5000  1.0
  Cu  Cu1  2  0.0000  0.0082  0.0000  1.0
  Hg  Hg2  4  0.2499  0.0357  0.7765  1.0
  F  F3  4  0.0753  0.7777  0.8361  1.0
  F  F4  4  0.0878  0.2541  0.8788  1.0
  F  F5  4  0.2386  0.4184  0.5888  1.0
]