data_[K4Rb10Sn8]
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
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.4936]
_cell_length_b [7.8473]
_cell_length_c [10.7086]
_cell_angle_alpha [90.0000]
_cell_angle_beta [121.9011]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Rb5Sn4]
_chemical_formula_sum '[K4 Rb10 Sn8]'
_cell_volume [1248.0158]
_cell_formula_units_Z [2]
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
[
  Rb  Rb0  8  0.1142  0.2504  0.9005  1
  K  K1  4  0.2351  0.5000  0.5812  1
  Rb  Rb2  2  0.0000  0.0000  0.5000  1
  Sn  Sn3  4  0.0771  0.5000  0.1687  1
  Sn  Sn4  4  0.2412  0.0000  0.7499  1
]