data_[K3Na5Hg3]
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 [P-62m]
_cell_length_a [9.5055]
_cell_length_b [9.5055]
_cell_length_c [6.7522]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [189]
_chemical_formula_structural [K3Na5Hg3]
_chemical_formula_sum '[K3 Na5 Hg3]'
_cell_volume [528.3484]
_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
[
  K  K0  3  0.0000  0.6398  0.0000  1
  Na  Na1  3  0.0000  0.2601  0.5000  1
  Na  Na2  2  0.3333  0.6667  0.5000  1
  Hg  Hg3  3  0.0000  0.6265  0.5000  1
]