data_[K12Ce9Hg3Se24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ce  1.1200  1.8500  1.0800
  Hg  2.0000  1.5000  1.2450
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [8.6568]
_cell_length_b [8.6568]
_cell_length_c [23.0012]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [K4Ce3HgSe8]
_chemical_formula_sum '[K12 Ce9 Hg3 Se24]'
_cell_volume [1492.7769]
_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
[
  K  K0  9  0.0000  0.5000  0.0000  1.0
  K  K1  3  0.0000  0.0000  0.0000  1.0
  Ce  Ce2  9  0.0000  0.5000  0.5000  1.0
  Hg  Hg3  3  -0.0000  -0.0000  0.5000  1.0
  Se  Se4  18  0.0069  0.5034  0.7642  1.0
  Se  Se5  6  0.0000  0.0000  0.2363  1.0
]