data_[K6Al3Cd18Ag3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Al  1.6100  1.2500  0.6750
  Cd  1.6900  1.5500  1.0900
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [7.3828]
_cell_length_b [7.3828]
_cell_length_c [18.6608]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [K2AlCd6Ag]
_chemical_formula_sum '[K6 Al3 Cd18 Ag3]'
_cell_volume [880.8630]
_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  0.1902  1.0
  Al  Al1  3  0.0000  0.0000  0.0000  1.0
  Cd  Cd2  18  0.0502  0.7913  0.6256  1.0
  Ag  Ag3  3  -0.0000  0.0000  0.5000  1.0
]