data_[Cs3K6Er3Cl18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  K  0.8200  2.2000  1.5200
  Er  1.2400  1.7500  1.0300
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.8422]
_cell_length_b [7.8422]
_cell_length_c [20.7507]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [CsK2ErCl6]
_chemical_formula_sum '[Cs3 K6 Er3 Cl18]'
_cell_volume [1105.1948]
_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
[
  Cs  Cs0  3  0.0000  0.0000  0.8082  1.0
  K  K1  3  0.0000  0.0000  0.0125  1.0
  K  K2  3  0.0000  0.0000  0.5277  1.0
  Er  Er3  3  0.0000  0.0000  0.3248  1.0
  Cl  Cl4  9  0.0580  0.3720  0.9240  1.0
  Cl  Cl5  9  0.0809  0.6857  0.0718  1.0
]