data_[K3Er3Ag6Cl18]
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
  Ag  1.9300  1.6000  1.0867
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.0894]
_cell_length_b [7.0894]
_cell_length_c [19.3841]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [KEr(AgCl3)2]
_chemical_formula_sum '[K3 Er3 Ag6 Cl18]'
_cell_volume [843.7199]
_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  3  0.0000  0.0000  0.8101  1.0
  Er  Er1  3  0.0000  0.0000  0.3251  1.0
  Ag  Ag2  3  0.0000  0.0000  0.0065  1.0
  Ag  Ag3  3  0.0000  0.0000  0.5211  1.0
  Cl  Cl4  9  0.0148  0.3466  0.9211  1.0
  Cl  Cl5  9  0.0728  0.7139  0.0782  1.0
]