data_[K10Rb4Hg8]
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 [C2/m]
_cell_length_a [16.6435]
_cell_length_b [8.3461]
_cell_length_c [11.1061]
_cell_angle_alpha [90.0000]
_cell_angle_beta [131.8906]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K5(RbHg2)2]
_chemical_formula_sum '[K10 Rb4 Hg8]'
_cell_volume [1148.4419]
_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
[
  K  K0  8  0.0328  0.2612  0.2120  1.0
  Rb  Rb1  4  0.2121  0.5000  0.7622  1.0
  K  K2  2  0.0000  0.0000  0.5000  1.0
  Hg  Hg3  4  0.2027  0.5000  0.1297  1.0
  Hg  Hg4  4  0.2290  0.0000  0.5362  1.0
]