data_[Pm2Al2O2]
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 [P-6m2]
_cell_length_a [3.0670]
_cell_length_b [3.0670]
_cell_length_c [11.9955]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [187]
_chemical_formula_structural [PmAlO]
_chemical_formula_sum '[Pm2 Al2 O2]'
_cell_volume [97.7155]
_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  0.3333  0.6667  0.2730  1
  Al  Al1  1  0.0000  0.0000  0.5000  1
  Al  Al2  1  0.3333  0.6667  0.0000  1
  O  O3  2  0.0000  0.0000  0.0971  1
]