data_[K16Rb4Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [21.2786]
_cell_length_b [9.6416]
_cell_length_c [7.8692]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.3911]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K4RbAg]
_chemical_formula_sum '[K16 Rb4 Ag4]'
_cell_volume [1522.8711]
_cell_formula_units_Z [4]
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  8  0.1051  0.2458  0.6038  1.0
  K  K1  4  0.0000  0.2307  0.0000  1.0
  K  K2  4  0.1547  0.5000  0.1547  1.0
  Rb  Rb3  4  0.2038  0.0000  0.2016  1.0
  Ag  Ag4  4  0.0004  0.5000  0.6842  1.0
]