data_[K2Rb2Hg2]
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
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [P1]
_cell_length_a [4.5826]
_cell_length_b [8.4223]
_cell_length_c [9.0012]
_cell_angle_alpha [77.9042]
_cell_angle_beta [87.5957]
_cell_angle_gamma [89.7620]
_symmetry_Int_Tables_number [1]
_chemical_formula_structural [KRbHg]
_chemical_formula_sum '[K2 Rb2 Hg2]'
_cell_volume [339.3907]
_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  1  0.2021  0.6018  0.5248  1.0
  K  K1  1  0.6893  0.9684  0.1227  1.0
  Rb  Rb2  1  0.6961  0.4898  0.0206  1.0
  K  K3  1  0.7406  0.1005  0.5649  1.0
  Hg  Hg4  1  0.2140  0.2117  0.8436  1.0
  Hg  Hg5  1  0.2152  0.8500  0.8466  1.0
]