data_[Rb4Sr2Al2Bi4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  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 [5.1524]
_cell_length_b [10.2392]
_cell_length_c [9.0646]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [Rb2SrAlBi2]
_chemical_formula_sum '[Rb4 Sr2 Al2 Bi4]'
_cell_volume [478.2139]
_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  0.1617  0.8441  1.0
  Rb  Rb1  2  0.5000  0.0934  0.5133  1.0
  Sr  Sr2  2  0.0000  0.4689  0.5039  1.0
  Al  Al3  2  0.5000  0.3351  0.1639  1.0
  Bi  Bi4  2  0.0000  0.2096  0.2395  1.0
  Bi  Bi5  2  0.5000  0.4035  0.7809  1.0
]