data_[K2Na14Hg10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Na  0.9300  1.8000  1.1600
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [6.4071]
_cell_length_b [11.1472]
_cell_length_c [11.0939]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [KNa7Hg5]
_chemical_formula_sum '[K2 Na14 Hg10]'
_cell_volume [792.3358]
_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
[
  K  K0  2  0.0000  0.0000  0.0102  1.0
  Na  Na1  4  0.0000  0.2926  0.5081  1.0
  Na  Na2  4  0.0000  0.3463  0.9893  1.0
  Na  Na3  2  0.0000  0.0000  0.3366  1.0
  Na  Na4  2  0.0000  0.0000  0.6566  1.0
  Na  Na5  2  0.0000  0.5000  0.2736  1.0
  Hg  Hg6  8  0.2452  0.2555  0.2522  1.0
  Hg  Hg7  2  0.0000  0.5000  0.7194  1.0
]