data_[Hf12Al4O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hf  1.3000  1.5500  0.8500
  Al  1.6100  1.2500  0.6750
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.3249]
_cell_length_b [11.3520]
_cell_length_c [8.8657]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Hf3AlO]
_chemical_formula_sum '[Hf12 Al4 O4]'
_cell_volume [334.6327]
_cell_formula_units_Z [4]
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
[
  Hf  Hf0  8  0.0000  0.3646  0.0460  1.0
  Hf  Hf1  4  0.0000  0.0432  0.2500  1.0
  Al  Al2  4  0.0000  0.2560  0.7500  1.0
  O  O3  4  0.0000  0.0000  0.0000  1.0
]