data_[K6Si6Cl18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Si  1.9000  1.1000  0.5400
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [R3c]
_cell_length_a [7.7694]
_cell_length_b [7.7694]
_cell_length_c [22.3797]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [161]
_chemical_formula_structural [KSiCl3]
_chemical_formula_sum '[K6 Si6 Cl18]'
_cell_volume [1169.9346]
_cell_formula_units_Z [6]
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  0.1990  1
  Si  Si1  6  0.0000  0.0000  0.0282  1
  Cl  Cl2  18  0.0011  0.2472  0.5814  1
]