data_[K4Rb2Na1Hg2]
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 [P-1]
_cell_length_a [7.4819]
_cell_length_b [7.6804]
_cell_length_c [9.0586]
_cell_angle_alpha [96.7664]
_cell_angle_beta [98.3173]
_cell_angle_gamma [102.6784]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [K4Rb2NaHg2]
_chemical_formula_sum '[K4 Rb2 Na1 Hg2]'
_cell_volume [496.4447]
_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  2  0.0204  0.4277  0.7215  1.0
  Rb  Rb1  2  0.4049  0.2130  0.3883  1.0
  K  K2  2  0.4858  0.7594  0.0954  1.0
  Na  Na3  1  0.0000  0.0000  0.0000  1.0
  Hg  Hg4  2  0.1121  0.9390  0.6410  1.0
]