data_[Pm2Al8O14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  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 [Pmn2_1]
_cell_length_a [13.1647]
_cell_length_b [5.3687]
_cell_length_c [4.9617]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [PmAl4O7]
_chemical_formula_sum '[Pm2 Al8 O14]'
_cell_volume [350.6829]
_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
[
  Pm  Pm0  2  0.0000  0.1631  0.3022  1
  Al  Al1  4  0.1216  0.6707  0.5803  1
  Al  Al2  4  0.2495  0.8276  0.0628  1
  O  O3  4  0.1381  0.7288  0.9182  1
  O  O4  4  0.1424  0.3570  0.4792  1
  O  O5  4  0.2123  0.8782  0.4099  1
  O  O6  2  0.0000  0.7544  0.4519  1
]