data_[K1Rb7Hg3]
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 [P3m1]
_cell_length_a [9.5107]
_cell_length_b [9.5107]
_cell_length_c [9.3303]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [156]
_chemical_formula_structural [KRb7Hg3]
_chemical_formula_sum '[K1 Rb7 Hg3]'
_cell_volume [730.8927]
_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
[
  Rb  Rb0  3  0.1640  0.3279  0.9399  1.0
  Rb  Rb1  3  0.3311  0.1656  0.4334  1.0
  K  K2  1  0.3333  0.6667  0.5526  1.0
  Rb  Rb3  1  0.6667  0.3333  0.0160  1.0
  Hg  Hg4  3  0.1022  0.5511  0.2322  1.0
]