data_[K2Rb4Na4Hg10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [P4/mbm]
_cell_length_a [13.3508]
_cell_length_b [13.3508]
_cell_length_c [4.2611]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [127]
_chemical_formula_structural [KRb2Na2Hg5]
_chemical_formula_sum '[K2 Rb4 Na4 Hg10]'
_cell_volume [759.5042]
_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
[
  Rb  Rb0  4  0.1803  0.6803  0.0000  1.0
  K  K1  2  0.0000  0.0000  0.0000  1.0
  Na  Na2  4  0.1203  0.3797  0.0000  1.0
  Hg  Hg3  8  0.0564  0.2080  0.5000  1.0
  Hg  Hg4  2  0.0000  0.5000  0.5000  1.0
]