data_[K8Pr6Al2O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Pr  1.1300  1.8500  1.0600
  Al  1.6100  1.2500  0.6750
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.6053]
_cell_length_b [6.9679]
_cell_length_c [7.4514]
_cell_angle_alpha [90.0000]
_cell_angle_beta [121.6756]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K4Pr3AlO8]
_chemical_formula_sum '[K8 Pr6 Al2 O16]'
_cell_volume [556.9757]
_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  4  0.2500  0.2500  0.0000  1
  K  K1  2  0.0000  0.0000  0.0000  1
  K  K2  2  0.0000  0.5000  0.0000  1
  Pr  Pr3  4  0.2500  0.2500  0.5000  1
  Pr  Pr4  2  0.0000  0.5000  0.5000  1
  Al  Al5  2  0.0000  0.0000  0.5000  1
  O  O6  8  0.0208  0.2018  0.3407  1
  O  O7  4  0.2231  0.5000  0.6947  1
  O  O8  4  0.2353  0.5000  0.2716  1
]