data_[K6Er3Cd9Hg36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Er  1.2400  1.7500  1.0300
  Cd  1.6900  1.5500  1.0900
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [6.9647]
_cell_length_b [6.9647]
_cell_length_c [38.8223]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [K2Er(CdHg4)3]
_chemical_formula_sum '[K6 Er3 Cd9 Hg36]'
_cell_volume [1630.8645]
_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  6  0.0000  0.0000  0.3610  1
  Er  Er1  3  0.0000  0.0000  0.0000  1
  Cd  Cd2  9  0.0000  0.5000  0.5000  1
  Hg  Hg3  18  0.0044  0.5022  0.3902  1
  Hg  Hg4  18  0.0395  0.5197  0.1134  1
]