data_[K2Rb4Sn2Sb4]
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
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [5.6852]
_cell_length_b [9.9159]
_cell_length_c [8.3602]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [KRb2SnSb2]
_chemical_formula_sum '[K2 Rb4 Sn2 Sb4]'
_cell_volume [471.2918]
_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  2  0.0000  0.1672  0.8162  1
  K  K1  2  0.0000  0.4657  0.5164  1
  Rb  Rb2  2  0.5000  0.0836  0.5061  1
  Sn  Sn3  2  0.5000  0.3312  0.1648  1
  Sb  Sb4  2  0.0000  0.2059  0.2347  1
  Sb  Sb5  2  0.5000  0.3901  0.8073  1
]