data_[K3Rb3Tl3Hg3]
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
  Tl  1.6200  1.9000  1.3325
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [5.3369]
_cell_length_b [5.3369]
_cell_length_c [23.8052]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [KRbTlHg]
_chemical_formula_sum '[K3 Rb3 Tl3 Hg3]'
_cell_volume [587.1915]
_cell_formula_units_Z [3]
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  0.0000  0.0000  0.0475  1.0
  K  K1  3  0.0000  0.0000  0.8634  1.0
  Tl  Tl2  3  0.0000  0.0000  0.6150  1.0
  Hg  Hg3  3  0.0000  0.0000  0.2810  1.0
]