data_[K2Rb2Na4Hg2]
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 [P2_1/m]
_cell_length_a [10.2456]
_cell_length_b [4.5472]
_cell_length_c [11.3119]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.1289]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KRbNa2Hg]
_chemical_formula_sum '[K2 Rb2 Na4 Hg2]'
_cell_volume [515.2471]
_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  2  0.1687  0.2500  0.2346  1.0
  K  K1  2  0.3197  0.2500  0.8924  1.0
  Na  Na2  2  0.0847  0.2500  0.5949  1.0
  Na  Na3  2  0.4717  0.2500  0.6089  1.0
  Hg  Hg4  2  0.2513  0.7500  0.4975  1.0
]