data_[K2Rb16Hg4]
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 [11.9197]
_cell_length_b [18.0060]
_cell_length_c [7.4187]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.3619]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K(Rb4Hg)2]
_chemical_formula_sum '[K2 Rb16 Hg4]'
_cell_volume [1555.3394]
_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  8  0.1980  0.1351  0.0842  1.0
  Rb  Rb1  4  0.0000  0.2576  0.5000  1.0
  Rb  Rb2  4  0.1056  0.5000  0.2861  1.0
  K  K3  2  0.0000  0.0000  0.5000  1.0
  Hg  Hg4  4  0.0000  0.3145  0.0000  1.0
]