data_[K4Sr2Al2Bi4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sr  0.9500  2.0000  1.3200
  Al  1.6100  1.2500  0.6750
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [5.0926]
_cell_length_b [9.8143]
_cell_length_c [8.8942]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [K2SrAlBi2]
_chemical_formula_sum '[K4 Sr2 Al2 Bi4]'
_cell_volume [444.5308]
_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
[
  K  K0  2  0.0000  0.1602  0.8469  1.0
  K  K1  2  0.5000  0.0884  0.5163  1.0
  Sr  Sr2  2  0.0000  0.4660  0.5025  1.0
  Al  Al3  2  0.5000  0.3295  0.1616  1.0
  Bi  Bi4  2  0.0000  0.1981  0.2375  1.0
  Bi  Bi5  2  0.5000  0.3965  0.7809  1.0
]