data_[Ba4Pm2Al4O14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Pm  1.1300  1.8500  1.1100
  Al  1.6100  1.2500  0.6750
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [3.8930]
_cell_length_b [3.8930]
_cell_length_c [20.9126]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Ba2PmAl2O7]
_chemical_formula_sum '[Ba4 Pm2 Al4 O14]'
_cell_volume [316.9377]
_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
[
  Ba  Ba0  4  0.0000  0.0000  0.1807  1
  Pm  Pm1  2  0.0000  0.0000  0.0000  1
  Al  Al2  4  0.0000  0.0000  0.4102  1
  O  O3  8  0.0000  0.5000  0.0832  1
  O  O4  4  0.0000  0.0000  0.3184  1
  O  O5  2  0.0000  0.0000  0.5000  1
]