data_[Sr2Pm2Al2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  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 [P2_1/m]
_cell_length_a [5.7028]
_cell_length_b [5.7880]
_cell_length_c [6.8795]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.9692]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [SrPmAlO4]
_chemical_formula_sum '[Sr2 Pm2 Al2 O8]'
_cell_volume [215.9980]
_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
[
  Sr  Sr0  2  0.2934  0.2500  0.0718  1
  Pm  Pm1  2  0.1982  0.2500  0.5397  1
  Al  Al2  2  0.2547  0.7500  0.3138  1
  O  O3  4  0.0405  0.5173  0.2763  1
  O  O4  2  0.4476  0.7500  0.5707  1
  O  O5  2  0.4532  0.7500  0.1611  1
]